Softshell Onesie for Cosy Outdoor Adventures
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Fabulously Made for Puddle-Jumping Professionals
There comes a moment between the front step and the nearest adventure (often involving mud) when your child requires something marvelously dependable. Enter this delightfully stylish softshell onesie: designed to keep your little explorer dry, warm, and ready for whatever wild escapade the garden or park has staged today.
Why Choose Our Softshell Onesie?
Weather-Resistant Fabric: With a 10,000 mm waterproof rating and breathability at 5,000 g per square metre per day, this onesie repels drizzle and downpour alike whilst allowing skin to enjoy a bit of fresh air.
Adjustable Comfort: Gently customizable at the hood and waist, which is marvellous for both growth spurts and fashion whims. Ideal for sprawling sandpit scenarios or impromptu leaf pile leaps.
Safety Meets Snug: Reflective stripes offer a reassuring glow come dusk, and ribbed cuffs politely keep out rogue gusts of wind.
Stylish Durability: Whimsically printed patterns stand up to rough-and-tumble play, and zippered pockets store everything from wholesome snacks to unsettling insect discoveries.
Product Details:
Material: 94 percent polyester and 6 percent polyamide, meaning it's soft without being a pushover against the elements.
Design: Unisex and rather good-looking, suitable for all small humans regardless of preference or puddle-hunting technique.
Made In: Designed and stitched together in Estonia, a nation presumably built on the back of bracing weather and excellent tailoring.
Sustainable Production: Mostly made to order, which avoids needless waste and makes your onesie feel all the more splendidly individual.
Care Instructions:
- Wash at 30 degrees Celsius with pockets emptied and fastenings secured.
- Turn inside-out and use detergent meant for technical wear. Kindly avoid softeners, bleach or tumble drying.
- Air dry sensibly. No wringing, unless you enjoy regret.
Let your little one dash into the great (and possibly soggy) unknown with confidence. Order your fabulously made softshell onesie now while the rain clouds gather and the adventure awaits.
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.
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