Walk into any gym and you'll see both — people training in soft cotton tees and others in sleek polyester performance gear. Both have their place, but they perform very differently. Here's everything you need to know about cotton vs polyester gymwear so you can make the right choice for your training.
Cotton Gymwear
Cotton is the most natural and widely used fabric in gymwear. It's soft, breathable, and comfortable — which is why it's been a gym staple for decades.
Pros of Cotton:
- Soft and comfortable — gentle on skin, great for all-day wear
- Breathable — allows airflow, keeping you cool in lower-intensity sessions
- Natural feel — many people simply prefer the feel of cotton against their skin
- Durable — holds its shape well over time with proper care
- Versatile — looks great in and out of the gym
Cons of Cotton:
- Absorbs sweat — cotton soaks up moisture rather than wicking it away, which can make it heavy and uncomfortable during intense sessions
- Dries slowly — once wet, cotton takes longer to dry than synthetic fabrics
- Can shrink — pure cotton can shrink in the wash if not cared for correctly
Best for:
Weightlifting, rest days, lower-intensity training, lifestyle and casual wear. Cotton blends (like our 85% cotton / 15% polyester pieces) give you the softness of cotton with improved durability and shape retention.
BRACE Cotton Picks:
- Essential Gym Shorts — 85% cotton blend, lightweight and comfortable
- Essential Gym Joggers — soft-touch fleece interior, 85% cotton
- Men's Cotton Tank Top — breathable and classic
- Unisex Oversized Cotton T-Shirt — relaxed fit, premium cotton feel
Polyester Gymwear
Polyester is a synthetic fabric engineered specifically for performance. It's the go-to choice for high-intensity training, cardio, and sport.
Pros of Polyester:
- Moisture-wicking — pulls sweat away from the skin and disperses it, keeping you drier during intense sessions
- Quick-drying — dries significantly faster than cotton
- Lightweight — less fabric weight means less restriction during movement
- Shape retention — holds its shape well and resists shrinking
- Durable — resistant to wear and tear from repeated washing
Cons of Polyester:
- Can trap odour — synthetic fibres can hold bacteria and smell if not washed promptly
- Less breathable in low intensity — can feel warm and clingy if you're not generating enough heat to activate the wicking
- Less natural feel — some people find polyester less comfortable against bare skin
Best for:
HIIT, cardio, running, cycling, and any high-intensity training where sweat management is critical.
BRACE Performance Picks:
- Short Sleeve Performance T-Shirt — moisture-wicking, built for intense training
- Quick-Dry Performance Shorts — mesh-lined, fast-drying
- Quick-Dry Athletic Pants — lightweight performance fabric
- Women's Cooling Performance Crop Top — cooling fabric with spandex stretch
Cotton vs Polyester — Head to Head
| Cotton | Polyester | |
|---|---|---|
| Feel | Soft, natural | Smooth, synthetic |
| Moisture management | Absorbs sweat | Wicks sweat away |
| Drying speed | Slow | Fast |
| Breathability | High | Medium |
| Durability | Good | Excellent |
| Best for | Lifting, lifestyle | Cardio, HIIT |
| Versatility | Gym + everyday | Primarily gym |
What About Cotton-Polyester Blends?
Most of our core BRACE range uses an 85% cotton / 15% polyester blend — and for good reason. Blends give you the best of both worlds: the softness and breathability of cotton, with improved shape retention, durability, and a slight improvement in moisture management over pure cotton. It's the ideal fabric for general gym training and lifestyle wear.
Our Verdict
- Lifting & general training: Cotton or cotton blend — comfortable, durable, and versatile
- Cardio, HIIT & running: Polyester performance fabric — moisture-wicking and quick-drying
- Rest days & lifestyle: Cotton — soft, comfortable, and looks great all day
Ideally, build a wardrobe with both. Use performance pieces for your hardest sessions and cotton pieces for everything else.
Find Your Perfect Fit
Use our BRACE Size Guide to find the right size across all styles and fabrics.
Related Reading
How to Build the Perfect Gym Outfit → | What to Wear to the Gym as a Beginner → | The Ultimate Guide to Gymwear Sets → | Best Gym Shorts for Men UK →
Shop the Full Range
Browse the full BRACE Gymwear collection → and find the right fabric for your training.