1 | What Athleisure Actually Means

The word is a portmanteau of "athletic" and "leisure." It describes clothing that was engineered for sport but designed for life — garments that perform under physical stress yet look intentional in everyday settings.

Athleisure is not gym wear worn in public. That distinction matters. Gym wear is functional and often unfinished in detail — it is designed to be invisible inside a fitness environment. Athleisure is designed to be seen. The cut, colour palette, material finish, and branding are all considered from the point of view of someone walking down a high street, sitting in a cafe, or boarding a flight.

Merriam-Webster added "athleisure" to the dictionary in 2016 — a signal that the category had moved from trend to permanent fixture in modern dressing.

2 | The History of Athleisure: From Yoga Pants to the Boardroom

The story of athleisure is one of gradual permission. Each decade loosened the rules of what was acceptable to wear outside an athletic context.

1970s — Jogging Goes Mainstream

The American running boom of the 1970s — fuelled by Frank Shorter's 1972 Olympic marathon gold — moved the tracksuit out of the stadium and into suburbia. Brands like Nike and Adidas found consumers wearing their performance gear on errands and around the house. The category existed before the word did.

1980s — Aerobics and the Legging

Jane Fonda's workout videos and the aerobics explosion brought leggings, leg warmers, and fitted athletic wear into mass culture. For the first time, women's sportswear was built around visibility — designed to look good moving. The legging, once purely a dance garment, began its long migration toward everyday wear.

1990s — Hip Hop and the Tracksuit

Hip hop culture elevated the tracksuit from sportswear to status symbol. Brands like Fila, Kappa, and later Adidas became cultural currency. The tracksuit stopped being about exercise and became about identity. This is the moment athleisure acquired its relationship with luxury — once streetwear was desirable, the logic of expensive casual clothing was established.

2000s — Lululemon and the Technical Revolution

Lululemon's founding in 1998 and rapid expansion through the 2000s was the category-defining moment. They proved that women would pay premium prices for technically engineered, flattering athletic clothing — and wear it everywhere. The yoga pant became the defining garment of the decade, and major fashion houses began watching.

2010s — Luxury Enters and the Category Explodes

Alexander Wang, Stella McCartney for Adidas, and Versace's Versus line brought high fashion into athletic silhouettes. On Running launched in 2010 with a performance focus that became lifestyle desirability. Sweaty Betty expanded from a Notting Hill boutique into a global brand. The global athleisure market, valued at around $150bn in 2015, began accelerating.

2020s — The Pandemic Shift and Permanent Normalisation

Covid-19 accelerated a change that was already underway. With offices closed, the distinction between "work clothes" and "comfortable clothes" collapsed. Employers reopened to a workforce that had discovered the comfort of performance fabrics — and had no desire to reverse that. Athleisure is now a permanent segment of how people dress. The global market is forecast to exceed $550bn by 2028.

3 | Key Athleisure Brands at OD's Designer Clothing

We stock a curated range of athleisure brands — selected for technical performance, design quality, and wearability beyond the gym. Each brand approaches the category differently.

4 | How to Wear Athleisure Properly

The difference between athleisure that works and gym wear worn in public is almost entirely in the execution. These principles apply regardless of brand or budget.

Build Around One Statement Piece

Athleisure works best when the athletic element is singular. One technical piece — a pair of Sweaty Betty leggings, a Reprimo tracksuit jacket, an On Running Cloud 5 — anchored by more conventional surrounding items. Avoid making every element of the outfit athletic simultaneously.

The Footwear Rule

Clean, minimalist trainers are the foundation of athleisure done well. On Running Cloud 5 is the benchmark — low-profile, white or neutral, no aggressive chunky sole. Avoid running shoes with aggressive grip patterns, neon colourways, or maximalist cushioning when the rest of the outfit is not also athletic.

Fabric Quality Matters More Than Branding

Cheap fabrics read as gym wear in any context. Quality fabrics — heavyweight cotton-blend French terry, four-way stretch performance jersey, brushed fleece — read as leisurewear regardless of brand. Reprimo and Sandbanks both demonstrate this: the quality of the material is immediately legible.

Fit Is Non-Negotiable

Athleisure silhouettes are deliberately relaxed, but relaxed is not the same as shapeless. Oversized hoodies work when proportions are considered — tapered at the bottom, structured at the shoulder. Leggings work when they fit cleanly through the hip and thigh without bagging or pulling.

Occasions That Work

• Airport and travel — athleisure is the optimal airport outfit
• Brunch and coffee — joggers with a clean knit and minimal trainers
• Creative offices and remote working days
• Casual socialising — pub, cinema, informal dinner
• Shopping and errands — the original athleisure occasion

5 | Athleisure Do's and Don'ts

6 | Athleisure Fabric Technology Explained

The defining characteristic of athleisure over conventional leisurewear is technical fabric construction. Understanding what you are buying helps you choose the right piece for the right purpose.

Moisture Management

Performance fabrics pull sweat away from the skin to the outer surface where it can evaporate. This is called moisture-wicking or moisture-transport technology. On Running calls their version DryTec. Sweaty Betty engineer this into all of their training fabrics. The effect is that you remain dry and comfortable even during physical activity — or simply in warm environments.

Four-Way Stretch

Standard fabrics stretch in two directions — along the grain and across it. Four-way stretch fabrics (typically containing elastane or Lycra) stretch in all four directions, meaning they return to shape after any movement. This is the core technical feature of performance leggings and athletic shorts that allows them to move with the body without bagging.

French Terry

The premium fabric of choice for tracksuits, hoodies, and sweatshirts. French terry has a flat face and looped back — giving it softness, breathability, and structure. Heavyweight French terry (400gsm+) is the material that separates a premium Reprimo tracksuit from a budget alternative. Weight, hand-feel, and how it holds its shape after washing are the quality tells.

Performance Knit

A technical knit construction used in polo shirts, performance tops, and mid-layers. More structured than jersey, more breathable than traditional knitwear. Sandbanks and P.E Nation both use performance knit constructions in their more casual-facing pieces.

Shop Athleisure at OD's

Every piece below is in stock at OD's Designer Clothing — authorised UK stockist.

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