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Utterly Marvellous Warmth for Tiny Humans
If you’ve ever tried coaxing a wriggly child into a complicated outfit after breakfast chaos, you’ll appreciate this splendid solution. Our Thermal Merino Sweater for Kids is delightfully simple to slip on, fabulously soft, and keeps your young explorer properly toasty whether they’re scaling the sofa or trekking through the playground like it’s Everest.
Why Choose Our Thermal Merino Sweater?
Luxuriously Warm: Made entirely of mulesing-free merino wool that feels rather good against the skin and keeps your child wonderfully warm without turning them into a human marshmallow.
No-Fuss Layering: Designed as a mid-layer, so it plays nicely with coats and jackets. It’s that extra bit of snug between pyjamas and parka.
Designed for Real Life: Features a slightly longer back for, shall we say, posterior coverage. Quite handy on gusty days or whilst climbing things they possibly shouldn’t be climbing.
Beautifully Crafted in Europe: Made where they know a thing or two about chilly mornings and quality wool.
Product Details:
Fabric: 100 percent mulesing-free merino wool
Care: Machine washable on wool or handwash settings. Reshape it while damp so it returns to its original charming self. Expect slight shrinkage (5 to 7 percent)—rather like a soufflé, but warm.
Sizing: True to size with growing-room wiggle comfort
Add this fabulously made essential to your cart now and wrap your little one in glorious comfort before the next chilly outing sneaks up on you.
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!
The brands we work with all have a chat option, and they love to chat!
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 are Sostter
We met as children. Grew up a few streets apart. Built dens, rode bikes, and eventually — built Sostter.
It started with a shared love of objects that meant something…things with a past, or at least a purpose.
Now, Sostter is our grown-up version of a treasure hunt: a space where design meets storytelling.
We curate independent brands, one-of-a-kind finds, and everyday essentials with character.
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!