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The T-Shirt That Actually Keeps Up With You
Look, we've all bought gym wear that promises the earth and delivers, well, rather less. This one's different. We've rather gone to town with the engineering here, and the result is a shirt that genuinely performs without making you feel like you're wrapped in a duvet during training.
Why Choose Our Men's Infrared Performance T-Shirt
Two-Panel Construction with Elongated Back: Designed with your actual body in mind, not some theoretical athletic shape. The extended back ensures proper coverage whether you're stretching, lifting, or doing whatever it is people do at the gym.
Lightweight Yet Properly Durable: We've managed that rather tricky balance between fabric that won't abandon you after three washes and material that doesn't add unnecessary weight. Wear it for intense training, casual outings, or those moments when you want to look like you've got your life together.
Seamless, Open Neck Design: No annoying friction, no chafing, just glorious breathability. The thoughtful neckline means you can actually move without feeling like you're being gently throttled.
Product Details
Fabric Composition: Lightweight, durable blend engineered for performance and comfort
Construction: Seamless design with open neckline for superior breathability
Best For: Intense training, everyday wear, or anyone who'd rather their shirt work harder than they do
This is the sort of piece that quietly becomes indispensable. Rather good value, honestly.
SHIPPING + RETURNS
THE RATHER IMPORTANT BITS
This rather lovely piece ships directly from our brand partner - we work with independent brands who are absolutely brilliant and work frightfully hard to create beautiful things.
SHIPPING DESTINATIONS
Now, here's the thing - our wonderful brand partners ship to lots of different places, but not all of them can ship worldwide.
Some are brilliant at international shipping, others prefer to keep things closer to home.
At checkout, you'll see exactly where this particular brand can send your goodies.
We're terribly sorry, but shipping costs do vary rather wildly depending on where you are in the world. The exact figures pop up at checkout - no nasty surprises!
RETURNS
You have 14 days to return items.
Now, we absolutely adore our brand partners - they work incredibly hard and we do try to support them as much as we possibly can. So I'm rather afraid we have to pass the return postage costs back to you. Frightfully sorry about that!
🌍 PLEASE CHOOSE THOUGHTFULLY:
Our wonderful partners put their hearts into everything they make.
Ordering multiple sizes to try at home is rather hard on our planet and makes things jolly difficult for these brilliant independent creators.
When in doubt, do ask us first!
PAYMENT
We're frightfully modern and accept all the usual suspects:
Visa, Mastercard, American Express, PayPal, Apple Pay, Google Pay, and Shop Pay
SECURE AS HOUSES
Everything's properly encrypted and secure - your details are safer than the Crown Jewels!
All prices in lovely British pounds £ GBP, though international chaps will see converted prices.
Any payment pickle? We're here to help sort things out! Contact us
We Have Lots More Like This.........
Hello, we are Sostter....
Sostter began, as all good ideas do, with a lively conversation and a shared sense of frustration. Why had the world of independent design become so serious, so samey, so… beige? Where was the spark, the imagination, the sheer joy of discovering something that made you stop and stare?
We dreamt of a marketplace that celebrated difference — where curious minds could explore a world of independent brands, design-led makers, and thoughtful artisans. A space that felt exciting, human, and beautifully imperfect.
Today, Sostter brings together remarkable people and their creations — from London to Lausanne, Brooklyn to Berlin — uniting makers and discoverers through craftsmanship, creativity, and conscience. Every object tells a story, and every purchase supports an independent brand doing things differently.
This is just the beginning. But enough about us — step inside, explore our world, and see what catches your imagination.
Giving Back
We’re proud to support Sutton Night Watch, a grassroots UK charity making a real difference in the lives of those facing homelessness. Through regular donations of stock, supplies, and essentials, we back their mission to offer warmth, dignity, and practical help to anyone in need — right where it matters most.
Sell with us
Sostter partners with independent brands that intrigue, inspire, and bring something genuinely different to the world of fashion, design, and living.Join us!