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Recover Faster, Train Harder, Feel Rather Marvellous
Look, we'll be honest: most baselayers are rather forgettable. This one isn't. Our infrared performance top uses clever mineral-infused fabric technology to boost blood circulation, increase oxygen to your muscles, and help you bounce back from tough training sessions. It's the sort of thing that actually does what it claims, which is always rather nice.
Why Choose Our Infrared Performance Top
- Infrared Technology That Works: Naturally increases local blood circulation and tissue oxygenation by up to 20 percent, promoting faster muscle recovery without any of the dubious marketing speak.
- Reduces Muscle Soreness: The enhanced cellular metabolism and improved lactic acid removal mean you'll experience noticeably less post-workout aching. Think of it as a gentle hug from the inside.
- Built to Last: Triple stitched hems, extra durable fabric, and flatlock stitching make this a proper workhorse. Wash after wash, season after season, it just keeps going.
- Genuinely Comfortable: Raglan seams and breathable quick drying fabric mean you can wear it immediately after training to cool down while you head to the showers. No awkward tugging required.
- Temperature Regulation: The fabric stores thermal energy 63 percent longer than standard baselayers when used as a base layer, yet dries 65 percent faster. Rather clever engineering.
- Added Perks: SPF35 plus rating, antimicrobial properties, and FDA certification as a Class I medical device. It's scientifically sound.
Product Details
Fit and Sizing: Our garments don't need to be skin tight for the infrared technology to work, so choose your size based on personal preference. If you prefer a looser fit, size up. Model shown is 183cm (6 feet) wearing Size Medium.
Size Chart (Chest Measurement): XS: 34 to 38 inches, S: 36 to 38 inches, M: 38 to 40 inches, L: 40 to 42 inches, XL: 42 to 44 inches, XXL: 46 to 48 inches.
Fabric Composition: 50 percent KYnergy Polyester, 32 percent Polyester, 18 percent Elastane.
Care: Wash at 30C (86F). Do not tumble dry.
How to Use: For best results, wear 30 minutes before exercise to prime your muscles and boost circulation, during training, and for at least one hour afterwards to support recovery. The infrared benefits don't diminish over time as the minerals are woven into the fibres themselves, so it remains effective with every wash.
This is proper kit for anyone serious about their training and recovery. Rather good value, if you ask us.
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!