Rather Splendid Comfort, Without the Fuss

Look, we've made a sweatshirt that somehow manages to be both beautifully crafted and wonderfully casual. It's the sort of thing you'll reach for on those mornings when looking effortlessly put-together feels rather important, yet you'd quite like to remain in something soft enough to practically dissolve into.

Why Choose Our Boxy Sweatshirt

Luxuriously Soft Fabric: A glorious blend of 50 percent organic cotton and 50 percent modal that feels rather marvellous against the skin. Breathable, durable, and the sort of textile that only improves with wear.
Unisex Design: Properly handsome tailoring that works brilliantly for anyone. No complicated sizing existential crises here.
Boxy Cut: A delightfully stylish silhouette that's generous without being shapeless. Pairs beautifully with your favourite loungewear or works splendidly for an effortless day out.
Four Gorgeous Colourways: Choose from four utterly fetching shades to suit your mood and wardrobe.

Product Details

Fabric Composition: 50 percent organic cotton, 50 percent modal
Style: Boxy unisex fit
Suitable For: Lounging at home or layering for an effortless everyday look

This is the sort of sweatshirt that tends to become rather indispensable rather quickly. We'd suggest claiming yours before everyone else realises quite how fabulous it is.

Size Small/Medium Large/X Large

Color Vibrant Blue Taupe Hot Pink Sky Blue Grey

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!

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.........

Person wearing a zebra head mask and purple suit sitting on a chair against a black brick wall. on sostter.com

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.

Read All About Us >

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.

Sostter partners with independent brands that intrigue, inspire, and bring something genuinely different to the world of fashion, design, and living.Join us!