2018 Activewear Trends

The year 2018 marked a significant turning point in the world of fitness and fashion. It was the year when “athleisure” transitioned from a niche trend into a dominant lifestyle category, fundamentally changing how we approach our wardrobes. No longer were gym clothes reserved solely for the treadmill or the yoga mat; instead, they became the uniform for grocery runs, brunch dates, and even casual office environments. This shift was fueled by a growing cultural emphasis on wellness, the rise of fitness influencers on social media, and significant technological advancements in textile manufacturing. In this comprehensive guide, we look back at the defining 2018 activewear trends that shaped the industry and continue to influence how we dress for movement today.

The Evolution of Athleisure as a Cultural Staple

In 2018, the term “athleisure” became more than just a buzzword; it became a way of life. The trend was driven by a collective desire for comfort without sacrificing style. Designers began to prioritize versatility, creating pieces that could seamlessly transition from a high-intensity interval training (HIIT) session to a social gathering. This was the year when the “studio-to-street” philosophy reached its peak. Brands focused on sophisticated silhouettes, muted color palettes, and high-quality finishes that made leggings look as polished as tailored trousers.

The cultural impact of this shift cannot be overstated. As the workforce became more mobile and remote work started its slow climb into the mainstream, the demand for flexible clothing skyrocketed. In 2018, we saw the rise of the “power legging”—a garment designed to provide compression and support during a workout while offering a sleek, flattering look for the rest of the day. This duality defined the year’s fashion landscape, proving that functional clothing could also be aspirational.

The Dominance of High-Waisted Silhouettes

If there was one silhouette that defined 2018 activewear, it was the high-waisted legging. Moving away from the low-rise styles of the early 2000s, the high-rise cut became the gold standard for both performance and aesthetics. There were several practical reasons for this shift. High-waisted bands provided better core support, stayed in place during complex movements like squats or downward dogs, and offered a sense of security that lower cuts lacked.

From a style perspective, high-waisted leggings paired perfectly with another major trend of the year: the cropped top. By meeting at the narrowest part of the waist, this combination created a balanced, elongated silhouette that appealed to a wide range of body types. Brands experimented with different waistband constructions, including wide, bonded bands that offered a “tummy control” effect and ribbed textures that added a touch of retro flair. This trend effectively killed the “muffin top” anxiety and ushered in an era of inclusive, supportive design.

Bold Prints: From Marble to Animal Instincts

While minimalist designs were popular, 2018 was also a year of expressive, bold prints. We saw a departure from basic black as consumers embraced patterns that allowed them to stand out in a crowded gym. One of the most ubiquitous prints of the year was marble. Inspired by interior design trends, marble-patterned leggings in shades of white, grey, and soft pink appeared in almost every major collection, offering a clean yet sophisticated look.

Animal prints also made a massive comeback in the fitness world. Leopard, cheetah, and snakeskin patterns were reimagined in technical fabrics, often in non-traditional colors like navy blue or forest green. These prints were frequently used in “set dressing,” where matching sports bras and leggings created a cohesive, high-fashion look. Additionally, geometric patterns and abstract floral designs provided options for those who wanted a more artistic approach to their workout gear. The key to wearing these bold prints in 2018 was balance—pairing a patterned bottom with a solid, neutral top to keep the outfit grounded.

The Rise of Sustainable and Ethical Activewear

2018 was a landmark year for environmental consciousness within the fashion industry, and activewear was at the forefront of this movement. Consumers began to ask more questions about where their clothes came from and what they were made of. This led to a surge in brands using recycled materials, such as polyester made from reclaimed ocean plastic and discarded water bottles. Companies like Girlfriend Collective and Outdoor Voices gained massive followings by being transparent about their supply chains and prioritizing eco-friendly manufacturing processes.

Beyond materials, “ethical” also referred to the longevity of the garments. The trend shifted toward “slow fashion,” where quality trumped quantity. Shoppers were willing to invest more in a single pair of durable, sustainably made leggings rather than buying multiple cheap pairs that would lose their shape after a few washes. This focus on sustainability wasn’t just a marketing ploy; it represented a fundamental shift in consumer values that has only intensified in the years since.

Mesh Insets and Laser-Cut Details

Technological innovation in 2018 wasn’t just about the fabric itself, but how it was constructed. Mesh insets became a staple design element, serving both a functional and aesthetic purpose. Strategically placed mesh panels on the calves, thighs, or back provided much-needed ventilation during intense workouts, helping to regulate body temperature. Visually, these panels added a sense of edge and complexity to otherwise simple designs, often mimicking the look of architectural cutouts.

Laser-cutting technology also became more prevalent, allowing designers to create intricate patterns and scalloped edges without the need for bulky seams. This resulted in “seamless” transitions and a lighter feel on the skin. These details were often found on the hems of leggings or the straps of sports bras, giving the garments a futuristic, high-tech appearance. The popularity of mesh and laser-cuts highlighted the industry’s move toward “performance-chic,” where every design choice had a reason for existing.

The Palette of 2018: Millennial Pink and Earthy Neutrals

Color trends in 2018 were split between two distinct camps: the vibrant and the grounded. On one hand, “Millennial Pink” continued its reign, appearing in everything from sneakers to windbreakers. This soft, dusty rose hue became synonymous with a certain lifestyle aesthetic—one that was feminine yet empowered. It was often paired with copper or rose gold metallic accents, creating a luxurious feel.

On the other hand, there was a strong movement toward earthy, nature-inspired neutrals. Sage green, terracotta, mustard yellow, and slate blue became incredibly popular, reflecting a desire to connect with the outdoors. These colors were often seen in matte finishes and brushed fabrics, reinforcing the “wellness” vibe of the era. Unlike the neon colors of previous decades, the 2018 palette was designed to be soothing and sophisticated, making it easier to integrate activewear into a daily wardrobe without looking like you were perpetually headed to a 1980s aerobics class.

Seamless Technology and the “Second Skin” Feel

In 2018, the quest for the perfect fit led to the widespread adoption of seamless knitting technology. Unlike traditional garments that are cut from flat fabric and sewn together, seamless activewear is knit in a circular fashion, resulting in a piece with minimal seams. This innovation was a game-changer for comfort, as it eliminated the chafing and irritation often caused by bulky internal seams during repetitive movements.

The “second skin” feel became the ultimate goal for many brands. Consumers looked for fabrics that were lightweight and breathable yet offered enough compression to feel supported. This trend also allowed for “engineered” compression zones, where the knit pattern could be tightened in areas like the waistband or thighs to provide extra support without the need for additional layers of fabric. The result was a sleek, streamlined look that moved with the body, making it a favorite for yoga, Pilates, and barre enthusiasts.

Streetwear Influence: Hoodies, Bombers, and Dad Sneakers

The line between activewear and streetwear became almost invisible in 2018. This was the year of the “oversized” silhouette. Tight-fitting leggings were frequently balanced with voluminous hoodies, cropped bomber jackets, and even oversized denim jackets. This contrast created an effortlessly cool aesthetic that was popularized by celebrities and off-duty models.

Footwear also played a crucial role in this trend. 2018 saw the rise of the “dad sneaker”—chunky, multi-layered trainers that prioritized cushion and support over a slim profile. Brands like Balenciaga and Fila led the charge, but traditional athletic brands like Nike and Adidas quickly followed suit with their own chunky iterations. These shoes were often worn with crew socks pulled up over the bottom of leggings, a styling choice that leaned into a retro, 90s-inspired athletic look. This intersection of high-fashion streetwear and functional gym gear solidified activewear’s place as a versatile tool for self-expression.

Practical Guidance for Incorporating 2018 Trends Today

While fashion is cyclical, many of the trends from 2018 have become foundational elements of modern activewear. If you are looking to refresh your workout wardrobe with these classic influences, focus on quality and versatility. Look for high-waisted leggings with a high percentage of spandex for longevity. When choosing prints, opt for timeless patterns like subtle marble or dark animal prints that won’t feel dated in a few seasons.

To achieve the 2018 “athleisure” look, practice the art of layering. A sleek pair of black leggings can be transformed by adding a cropped hoodie and a structured trench coat. Don’t be afraid of the “set” look; matching tops and bottoms are still a quick way to look put-together with minimal effort. Most importantly, prioritize comfort and technical performance. The best lesson from 2018 is that when you feel good in what you’re wearing, you’re more likely to stay active and confident throughout your day.

The Biker Short Phenomenon: From Princess Diana Nostalgia to Runway Reality

While the existing article highlights the dominance of high-waisted leggings, 2018 was specifically the year that the biker short broke free from the cycling track and entered the high-fashion lexicon. This trend was largely catalyzed by a wave of 1990s nostalgia, with influencers and designers citing the iconic off-duty looks of Princess Diana as a primary inspiration. However, the 2018 iteration of the biker short was far more technical than its spandex predecessors. Brands began utilizing high-denier fabrics that offered significant compression, ensuring that the hem did not roll up during movement—a common technical flaw in earlier versions.

The versatility of the biker short in 2018 was its most surprising attribute. It became a foundational piece for “high-low” styling. For instance, a common sight on the streets of New York and Paris was a pair of 8-inch matte black biker shorts paired with an oversized, structured blazer and pointed-toe ankle boots. This specific combination solved a recurring fashion dilemma: how to remain comfortable in summer heat while maintaining a professional or polished silhouette. For the active user, the biker short offered a cooler alternative to full-length leggings for hot yoga or outdoor running, often featuring the same high-waisted, tummy-control bands discussed previously.

An important edge case during this trend was the “sausage-leg” effect, where the elastic at the hem of the short would dig into the thigh, creating an unflattering silhouette and restricting circulation. In response, high-end activewear brands in 2018 began introducing “laser-cut” hems or wider, double-layered fabric bands at the bottom of the shorts. These innovations distributed pressure more evenly, making the trend accessible to a wider range of body types and ensuring that the garment remained functional for high-intensity leg workouts where muscle expansion is significant.

The Integration of Utility: The Rise of the Phone Pocket and Reflective Tech

In 2018, activewear design moved beyond mere aesthetics to solve the practical problems of the modern athlete. The most significant of these was the “phone pocket” revolution. As smartphones became larger and more essential for tracking workouts via apps like Strava or MapMyRun, the traditional small waistband key pocket became obsolete. Designers began integrating deep, side-thigh pockets into leggings and shorts. These pockets were engineered using high-tension mesh or reinforced compression fabric to ensure that a heavy device wouldn’t bounce or slide out during a sprint.

This shift toward utility also saw the rise of “tech-wear” aesthetics within the activewear space. This included the use of heat-sealed zippers, which provided a waterproof barrier for valuables, and the strategic placement of reflective materials. While reflective strips had always existed for safety, 2018 saw the introduction of “all-over” reflective prints. Under normal light, these garments appeared to be a standard matte grey or black, but when hit by car headlights or a camera flash, the entire surface would glow. This was a massive trend for urban runners and cyclists who demanded safety without wanting to wear high-visibility neon vests during their post-run coffee stops.

Furthermore, the utility trend introduced the concept of “modular” activewear. We saw the emergence of leggings with attachment points for small pouches and sports bras with integrated loops for headphone wires (though the rise of AirPods quickly shifted this). This focus on hardware—heavy-duty plastic buckles, nylon webbing, and carabiner clips—gave 2018 activewear a rugged, industrial feel that appealed to the growing community of obstacle course racers and outdoor adventurers.

The Sports Bra as a Standalone Statement Piece

2018 was the year the sports bra officially graduated from an undergarment to a primary top. This transition was supported by the “longline” design trend, where the bodice of the bra extended several inches toward the waist, often meeting the top of high-waisted leggings to show only a sliver of skin. These longline bras functioned as cropped tanks, providing enough coverage and support to be worn alone in a public setting. This was particularly popular in boutique fitness environments like SoulCycle or Barry’s Bootcamp, where the high internal temperatures made traditional layering impractical.

Technically, the 2018 sports bra saw a move away from “uniboob” compression toward “encapsulation” technology. Previously, high-impact bras functioned by smashing breast tissue against the chest to minimize movement. In 2018, brands like Brooks and Panache gained traction by creating bras with individual molded cups that supported each breast separately. This reduced vertical and lateral movement more effectively and provided a more natural silhouette under clothing. We also saw a surge in intricate back designs—multi-strap configurations, racerback cutouts, and macramé-inspired weaving—which were designed specifically to be seen under open-back muscle tanks.

For those in the “D-plus” cup size category, 2018 brought a long-awaited focus on high-performance stylish options. No longer were supportive bras restricted to beige, industrial-looking designs. Brands began incorporating the bold prints and Millennial Pink hues mentioned earlier into high-impact, underwired sports bras, proving that support and style were not mutually exclusive. This inclusivity was a major driver of brand loyalty during the year, as consumers rewarded companies that didn’t relegate larger sizes to the back of the catalog.

One-Piece Wonders: The Return of the Unitard and Bodysuit

The fashion cycle brought back the 1980s-inspired unitard in 2018, but with a modern, sophisticated twist. Often referred to as “onesies” or “bodysuits,” these garments eliminated the gap between top and bottom, providing a streamlined look that was ideal for activities requiring a full range of motion, such as aerial silks, gymnastics, and advanced yoga. The primary appeal was the lack of a waistband; for many, the pressure of a tight legging band could be uncomfortable during deep twists or long periods of wear. The 2018 unitard solved this by distributing support across the shoulders and torso.

Designers experimented with various lengths, from the “biker-length” unitard to full-length versions with stirrups at the heels. To prevent these pieces from looking like simple dance leotards, they were often rendered in textured fabrics like ribbed Supplex or featured sophisticated color-blocking that mimicked the look of a two-piece set. A major styling trend involved tying a lightweight windbreaker or a flannel shirt around the waist of a unitard, breaking up the long line of fabric and making the outfit feel more grounded for street wear.

The edge case for the unitard, of course, was the logistical challenge of bathroom breaks. To address this, some innovative brands introduced “step-in” designs with highly elasticized necklines that could be pulled down easily, or even discreet snap-closures at the gusset. While the unitard remained a more niche trend compared to the ubiquitous legging, its presence on social media and in high-end studios signaled a move toward more daring, avant-garde silhouettes in the fitness world.

Men’s Activewear: The Tapered Jogger and the Death of the Baggy Short

While much of the 2018 activewear conversation focused on women’s fashion, the men’s sector underwent a parallel transformation. The most significant shift was the move away from the oversized, knee-length basketball shorts that had dominated gym floors for decades. In their place came the “tapered jogger” and the shorter-inseam training short. Men began prioritizing a tailored fit that showed the results of their training, leading to the popularity of 5-inch and 7-inch inseams. These shorter lengths allowed for better range of motion during squats and lunges while aligning with a more modern, European-inspired aesthetic.

The “liner” also became a technical focal point. Instead of wearing separate compression shorts under loose trunks, men opted for “2-in-1” shorts with integrated, anti-chafe liners. These liners often featured phone pockets (similar to the women’s trend) and were made from moisture-wicking fabrics that provided support without the bulk of traditional underwear. This was part of a broader move toward “minimalist” training gear, where every element of the outfit served a specific performance purpose.

In terms of tops, the “scalloped hem” t-shirt became a defining 2018 staple for men. These shirts featured a rounded bottom edge that was slightly longer in the front and back, providing coverage during overhead movements like pull-ups or shoulder presses. They were typically made from “tri-blend” fabrics—a mix of polyester, cotton, and rayon—which offered the soft feel of a vintage tee with the sweat-wicking properties of a technical garment. This allowed men to transition from the gym to a casual dinner without looking like they were still in their workout clothes, mirroring the athleisure shift seen in women’s fashion.

The Footwear Revolution: Lifting Shoes and the “Drop” Culture

Footwear in 2018 was characterized by extreme specialization. While the “dad sneaker” dominated the lifestyle market, the performance market saw a surge in sport-specific shoes. For the growing CrossFit community, shoes like the Nike Metcon and the Reebok Nano became essential. These shoes featured flat, stable heels for heavy lifting paired with flexible forefoots for running and jumping. The 2018 versions introduced “rope wrap” technology—rubberized grip on the sides of the midfoot specifically designed to help athletes climb ropes without shredding their shoes.

We also saw the rise of “drop” culture in activewear footwear. Taking a cue from the streetwear world, brands began releasing limited-edition colorways of their most popular trainers, creating a secondary resale market for gym shoes. This turned footwear into a status symbol within the fitness community. Owning a specific, hard-to-find color of a lifting shoe or a carbon-plated running shoe (like the early iterations of the Nike Vaporfly) was a way for athletes to signal their dedication to their sport.

Another notable trend was the mainstreaming of “spin shoes.” As indoor cycling studios like Peloton and SoulCycle exploded in popularity, consumers began purchasing their own cycling cleats rather than renting them. This led to a demand for spin shoes that looked more like traditional sneakers and less like plastic cycling gear. Brands responded with recessed cleats that allowed the wearer to walk across a hardwood floor without slipping, further blurring the line between specialized equipment and everyday footwear.

Anti-Microbial Fabrics and the Science of Scent Management

As people spent more time in their activewear—often wearing the same outfit from a morning workout through a full day of errands—the issue of odor became a primary technical challenge. In 2018, “anti-microbial” became a key marketing term. This wasn’t just a surface treatment; brands began weaving silver or copper ions directly into the yarn. These metals naturally inhibit the growth of odor-causing bacteria, allowing the garment to stay fresh for longer periods.

This technology was a game-changer for the “commuter athlete.” It meant that a shirt worn during a bike ride to work wouldn’t develop the stale sweat smell associated with traditional polyester. This also had an environmental angle: by reducing the need for frequent washing, these fabrics extended the life of the garment and reduced water and energy consumption. This tied back into the sustainability movement mentioned in the existing article, as “wear more, wash less” became a mantra for the eco-conscious consumer.

Furthermore, the 2018 focus on fabric science led to the popularity of “brushed” fabrics. These materials underwent a mechanical process where the surface fibers were raised, creating a buttery-soft texture that felt like suede or moleskin. While these fabrics were incredibly comfortable, they presented a technical edge case: pilling. Consumers quickly learned that these soft fabrics were better suited for low-impact activities like yoga or lounging, while high-friction activities like running or CrossFit required “slick” fabrics with a higher nylon content to prevent the fabric from breaking down. This era taught the consumer to choose their activewear based on the specific “coefficient of friction” required for their chosen sport.

Frequently Asked Questions

1. What were the most popular activewear brands in 2018?

In 2018, the market was a mix of established giants and rising boutiques. Lululemon remained a powerhouse, particularly with its Align pant. Nike and Adidas dominated the footwear and high-performance sectors. However, “cult” brands like Outdoor Voices, known for their “Doing Things” motto and color-blocked leggings, and Alo Yoga, famous for their street-ready aesthetics, saw massive growth. Fabletics also gained significant traction through its subscription model and celebrity collaborations.

2. Why did high-waisted leggings become so popular during this time?

The popularity of high-waisted leggings in 2018 was a combination of function and fashion. Functionally, they provided better support for the abdominal area and stayed secure during high-movement activities, preventing the need to constantly pull them up. Fashion-wise, they coincided with the trend of cropped tops, offering a flattering way to show a bit of skin while maintaining a streamlined and elongated silhouette that many consumers found empowering.

3. How did the “athleisure” trend change the way people dressed for work in 2018?

2018 saw a significant loosening of traditional dress codes. In many creative and tech-focused industries, leggings and high-end joggers became acceptable when styled correctly—often paired with blazers, loafers, or stylish knitwear. This “business casual 2.0” emphasized that productivity and professional appearance weren’t necessarily tied to uncomfortable, formal clothing. It paved the way for the even more relaxed dressing standards we see in modern hybrid work environments.

4. Was sustainability a major factor in activewear choices in 2018?

Yes, 2018 was a pivotal year for the “green” movement in fashion. This was when many consumers began to realize the environmental impact of synthetic microfibers and fast fashion. Brands that used recycled ocean plastics or organic cotton began to see a surge in loyalty. While not every consumer prioritized sustainability, the conversation moved from the fringes to the mainstream, forcing many large retailers to begin implementing more eco-friendly practices.

5. What is the difference between “seamless” and regular activewear?

Regular activewear is typically made by cutting patterns out of flat sheets of fabric and sewing them together with seams. Seamless activewear is created using specialized circular knitting machines that produce a tube of fabric, meaning there are no side seams. In 2018, seamless technology became popular because it reduced friction and chafing, offered a more flexible fit, and allowed for varying levels of compression to be knit directly into the garment without adding extra bulk.

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