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Train Harder, Recover Faster with Infrared Technology
Look, we'll be rather honest with you: these aren't just leggings. They're rather clever pieces of kit that happen to look the part while your body gets on with the serious business of performing better. Our infrared leggings blend cutting-edge temperature regulation with proper athletic support, so you can focus on what matters most—crushing your goals.
Why Choose Our Infrared Performance Leggings
Seamless Comfort for Endless Miles: The seamless front and back gusset paired with flatlock stitching means zero chafing, zero rubbing, and zero distraction. Whether you're running your first 5K or your hundredth, your skin stays blissfully happy.
Calf Compression Where It Counts: Your calves do rather a lot of heavy lifting during exercise. Our fitted calf support boosts circulation, aids proper stride technique, and keeps that vital muscle properly primed and ready.
Infrared Technology That Actually Works: Embedded within the fabric itself, our infrared-emitting technology increases local blood circulation by up to 20 percent, boosts tissue oxygenation, and enhances cellular metabolism. Translation: more oxygen to your muscles, more energy for your training, speedier recovery afterwards. The thermal energy retention is 63 percent longer than standard fabrics when worn as a base layer.
Temperature Regulation You'll Actually Notice: Dissipates heat efficiently while wicking sweat away. Our fabrics dry 65 percent faster than average athletic wear, so whether you're mid-session or cooling down, you stay dry and comfortable.
Elastic Waistband That Doesn't Dig In: Flexible yet secure, it prevents that maddening midsection pressure that ruins even the best workouts.
The Full Infrared Advantage
- Increased blood circulation and tissue oxygenation up to 20 percent
- Enhanced cellular metabolism and energy production
- Average 25 percent reduction in pain naturally
- Accelerated recovery from training, injury and surgery
- Reduces inflammation across the body
- 80 percent average reduction in soft tissue injuries through muscle priming
- SPF 35 plus rating for sun protection
- Antimicrobial properties keep you fresher longer
- Technology won't diminish with wear or washing
Product Details
Fabric Composition: 50 percent infrared-emitting polyester, 30 percent polyester, 20 percent elastane for stretch and durability.
Model Information: Our model wears size Medium and stands 6 feet tall. These leggings don't need to be skin-tight for the infrared technology to work, so choose your size based on personal comfort preference. If you prefer a looser fit, size up.
Sizing Guide - Waist: XS 28 inches, S 30 inches, M 32 inches, L 34 inches, XL 36 inches, XXL 38 inches.
Sizing Guide - Inner Leg: XS 27 to 28 inches, S 28 to 30 inches, M 30 to 32 inches, L 32 to 34 inches, XL 34 inches, XXL 34 inches.
Care Instructions: Wash at 30 degrees Celsius. Do not tumble dry to preserve the infrared technology and fabric integrity.
How to Get the Most From Your Leggings
For best results, wear these across the full training cycle. Pull them on 30 minutes before activity to prime your muscles and boost circulation. Keep them on during training and competition, then wear for at least one hour afterwards to support recovery. If rehabilitating an injury, wear as much as practical. The infrared minerals are woven into the fibres themselves, so the benefits remain consistent wash after wash, year after year.
Rather marvellous, really. Your legs deserve this.
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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