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Performance Meets Comfort in One Rather Splendid Suit
Look, we'll be honest with you. We've rather overengineered this tri suit, but only because we genuinely care about how you perform. This infrared tri suit isn't just something you slip on and hope for the best. It's properly thoughtfully designed to help your body work smarter, not just harder, whether you're training or racing.
Why Choose Our Infrared Tri Suit
Temperature Regulation That Actually Works: Our infrared fabric does something rather clever. It warms you when you're cold and cools you when you're hot. The material stores thermal energy 63 percent longer than standard fabrics and dries 65 percent quicker. You'll stay at that sweet spot of optimal temperature throughout your effort.
Genuine Performance Benefits: The infrared technology increases blood circulation by up to 20 percent, boosts tissue oxygenation, and enhances cellular metabolism. Translation: your muscles get more oxygen when they need it most. Athletes using this technology report an average 25 percent reduction in discomfort and an 80 percent average reduction in soft tissue injuries through muscle priming.
Comfort Where It Counts: We've fitted micro perforated La Fonte tri pads that are super stretchy and hi density with an in built air flow system. They protect your pressure points without feeling like you're wearing armour. The 70mm perforated grip on the leg keeps everything in place without restriction.
Designed for Movement: This sleeveless design gives you maximum flexibility across the shoulders and arms. The supportive athletic cut means it moves with you, not against you. Minimalist styling means you'll look rather good while performing brilliantly.
Sun and Microbe Protection: SPF35 plus rating protects your skin during open water and outdoor efforts. Built in antimicrobial properties keep things fresher for longer between washes.
Product Details
Key Features: Back zip with draw cord for easy entry and exit. 70mm micro perforated grip on leg. Micro perforated La Fonte tri pads for ventilation and protection. Sublimation printed logo.
Fabric Composition: 50 percent infrared polyester, 32 percent polyester, 18 percent elastane.
Care Instructions: Wash at 30 degrees Celsius. Do not tumble dry. The infrared technology is built into the fibres themselves, so it won't diminish with time or use. This product is FDA certified as a Class I medical device.
How to Use It Best: Wear this suit 30 minutes before your effort to prime your muscles and boost circulation. Keep it on during training and competition. Continue wearing it for at least one hour afterwards to support recovery. If you're rehabilitating an injury, wear it as much as possible.
Rather good athletes don't leave performance to chance. Get your infrared tri suit today and feel the difference that proper engineering makes. This is the sort of gear that rewards dedication.
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.
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Sostter partners with independent brands that intrigue, inspire, and bring something genuinely different to the world of fashion, design, and living.Join us!