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Train Harder, Recover Faster with Science-Backed Infrared Technology
Rather good news: these leggings aren't just comfortable to wear—they're scientifically designed to help you perform better. We've woven infrared-emitting minerals into the fabric itself, which means your body gets the benefits whether you're sprinting, recovering on the sofa, or somewhere in between. Rather marvellous, really.
Why Choose Our Performance Leggings
Seamless Comfort That Actually Works: Flatlock stitching and a seamless front-to-back gusset mean zero chafing, zero distraction. Just you and your workout.
Temperature Regulation You'll Actually Notice: Our infrared fabric dissipates heat 65 percent faster than standard leggings and holds warmth 63 percent longer when layered. Your skin stays dry. Your muscles stay primed.
Calf Support Where It Counts: The lower leg bears enormous responsibility in running—driving circulation and maintaining stride. We've added strategic compression to support this vital muscle group through every session.
Elastic Waistband That Doesn't Dig In: Flexible yet genuinely secure. No more hitching your leggings up mid-run.
Practical Storage: A proper zip pocket for your phone and keys. Rather essential, we thought.
The Infrared Advantage
Our infrared technology increases blood circulation by up to 20 percent tissue oxygenation, supports cellular metabolism, and accelerates recovery. This translates to more energy during training and genuinely faster muscle recovery afterward. The technology also reduces inflammation and may provide temporary pain relief—25 percent average reduction, according to testing. It's FDA certified as a Class I medical device, so you know it's the real thing.
Product Details
Fabric Composition: 50 percent infrared-emitting polyester, 30 percent polyester, 20 percent elastane
Size Guide: Model wearing Medium at 183cm (6'0). Waist sizes range from 28 inches (XS) to 38 inches (XXL). Inner leg lengths from 27-28 inches to 34 inches depending on size. Our garments don't need to be skin-tight for the infrared to work, so size up if you prefer a looser fit.
Care Instructions: Wash at 30 degrees Celsius. Air dry only.
Best Used: Wear for 30 minutes before exercise to prime muscles, during training, and for at least one hour afterward to support recovery. The infrared benefits won't diminish over time—the minerals are woven into the fibres themselves and remain effective through countless washes.
When You'll Really Feel the Difference
These leggings shine across the full training cycle: preparation, performance, recovery, and rehabilitation. Whether you're training for a race, recovering from injury, or simply wanting your body to work more efficiently, these are properly thoughtful kit.
This is the sort of product people notice they're wearing. Because they're too busy feeling rather good to complain about anything else.
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. Explore our British makers, discover sustainable brands, browse women-led businesses, find the perfect gift for her, or simply wander through our new arrivals and see what finds you.
This is just the beginning. But enough about us — read all about us, or step inside and see what catches your imagination.
A Curated Marketplace for Independent Ethical Brands
Discover our world of independent brands, conscious design, and purposeful creativity — all in one place.
Sostter is more than a marketplace. We're here to inspire a more thoughtful way to shop — one that celebrates the makers, the dreamers, and the independent brands doing things properly. Every brand on Sostter has been individually vetted for its originality, quality, and values. From sustainable fashion and ethical homeware to handmade jewellery and design-led gifts — all brought together in one considered space. Browse by location, by purpose, or simply wander and see what finds you. Want to sell with us? We'd love to hear from you.
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