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A Rather Splendid Red That Actually Works
Look, we're not ones to boast, but this brilliant red long-sleeved t-shirt is rather marvellous. It's made from super soft 100% certified organic cotton that feels rather good against the skin, and comes in a colour so gloriously vibrant you'll wonder why you didn't buy it sooner. Utterly fetching on its own, or layered under our cord dungarees and dresses for that effortlessly put-together look.
Why Choose Our Long Sleeve T-Shirt
Gorgeously Made Fabric: 100% GOTS certified organic cotton that's been treated with environmentally friendly AZO-free dyes. No nasty chemicals, just honest, properly handsome comfort.
Delightfully Soft: Feels fabulous against your skin from the very first wear, and only gets better after washing.
Splendidly Practical: Machine washable at 30 degrees, so caring for it is hardly a chore at all.
Designed With Care: Neck popper fastening on sizes up to 2 years for easy dressing and nappy changes.
Product Details
Fabric Composition: 100% certified organic cotton
Dye Process: Environmentally friendly AZO-free dyes
Care Instructions: Machine wash at 30 degrees
Features: Neck popper fastening on smaller sizes
Given how rather good these are, we've made one in every rainbow colour. This is the one you've been looking for.
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!