Mint tee layered with an open shirt
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Colour note
Product colours may look slightly different in real life depending on lighting, screen settings, and photography.
Important
Verify your size and colour before checkout. Changes aren't accepted once ordered.
Fit tip: For a comfortable fit, try one size up from your usual size. If you normally wear a 40, try L (42) for your preferred fit. Check the size chart to find your perfect size.
Because your T-shirt shouldn't hold you back.
Meet the men's cotton stretch t-shirt from PROTEEIN – made for days when comfort, flexibility and a great fit matter just as much as style.
Crafted from a premium 95% cotton and 5% elastane blend, this 240 GSM tee combines the familiar softness of cotton with the added flexibility of stretch fabric.
It moves naturally with you, feels comfortable throughout the day and maintains a clean, structured appearance. Whether you're travelling, heading out, meeting friends or simply getting through a busy day, this is the tee that keeps up.
95% cotton + 5% elastane
Premium 240 GSM fabric
Added stretch for greater flexibility
Soft and breathable feel
Comfortable unisex silhouette
Clean crew neckline
Available in eight everyday colours
Sizes XS–3XL
Unlike a traditional cotton T-shirt, the Cotton Stretch has added elastane for extra flexibility.
That means:
More freedom of movement
A comfortable, flexible feel
A closer silhouette without feeling restrictive
A substantial fabric feel with everyday versatility
THE TRAVEL LOOK: Pair it with joggers and sneakers for long journeys and comfortable travel days.
THE CASUAL LOOK: Team it with jeans and your favourite sneakers.
THE ACTIVE LOOK: Enjoy the added flexibility during everyday movement and light activities.
THE LAYERED LOOK: Wear it under an open shirt, jacket or hoodie for effortless styling.
This T-shirt offers a comfortable fit with added flexibility.
Prefer a more comfortable fit? Consider going one size up from your usual size, as suggested in our fit guide.
Check the size chart before ordering. If your measurements fall between two sizes, choose the smaller size for a closer fit or the larger size for a more relaxed fit.
Machine wash cold
Wash inside out with similar colours
Tumble dry on low heat
Avoid harsh detergents
Iron inside out on a low setting
Some T-shirts just sit in your wardrobe. Others move with you.
A LITTLE STRETCH. A LOT MORE FREEDOM.
Everyday comfort, with a little extra give. That's PROTEEIN.
| Size | Chest | Length |
|---|---|---|
| XS | 36 | 25 |
| S | 38 | 26 |
| M | 40 | 27 |
| L | 42 | 28 |
| XL | 44 | 29 |
| 2XL | 46 | 30 |
| 3XL | 48 | 31 |
PROTEEIN / STYLE YOUR PLAIN TEE
STEP 1 OF 4
Mint tee layered with an open shirt
Tucked into tailored trousers
Navy tee with an open shirt and joggers
Don't worry. We've made the decision easier.
Choose Cotton Stretch if comfort + flexibility are your priorities.
Choose Classic Crew if you want that dependable, everyday T-shirt fit.

The everyday uniform
Fabric
Premium cotton with a soft, substantial hand feel.
Fit
Relaxed through the body, finished with a clean crew neck.
Colour
A considered palette designed for everyday wear.
Made for
Layering, living, and everything in between.