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Gloriously Soft for Little Adventures
If your baby could speak, they might request something gently splendid — like this beautifully crafted merino silk jumpsuit. Lovingly designed for comfort and no small amount of style, it's ideal for those first outings, morning snuggles or very serious toddles across the carpet.
Why Choose Our Baby Jumpsuit?
Luxurious Fabric Blend: Made from 75 percent merino wool and 25 percent silk, this jumpsuit is wonderfully soft on sensitive skin and marvellously clever at keeping your little one cosy without overheating.
Two Way Zipper: A quite intelligent invention, really. It opens from both ends, so nighttime changes are a dash less daunting.
Stretchy Ribbed Cuffs: Designed to grow with your baby — because they do that rather a lot, don’t they?
Made in Europe: Created with genuine care and a properly high standard of craftsmanship that's hard not to admire.
Product Details:
Care: Machine washable on a wool or handwash setting. For best results, reshape while damp (we know, not the most glamorous task, but worth it). Fabric may naturally shrink 5 to 7 percent, which is apparently quite normal.
Seasonal Versatility: Light and breathable for summer, warm and snug for cooler days. Rather adaptable, like a good romantic lead.
Ready to Wrap Them in Wonder?
No need to overthink it. Add this fabulously made essential to your baby’s wardrobe before someone else’s baby swans about in it first.
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!