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The Bag That Actually Knows What It's Doing
Look, we'll be honest. We've rather fumbled our way into making something rather splendid. The Rosie is a beautifully crafted leather shoulder bag that somehow manages to be both impossibly practical and utterly fetching. It's the sort of bag that makes you feel competent, even when you're not.
Why Choose Our Rosie Shoulder Bag
Three Sections That Actually Work: One zipped, two open. A proper phone pocket sits alongside an additional interior zipper pocket, because we understand that your life is gloriously chaotic and requires storage. There's even a sneaky rear zipper pocket for things you'd rather keep to yourself, plus a D ring for attaching whatever bits and bobs you fancy.
Leather That Gets Better With Time: Handcrafted from genuinely sustainable cowhide, this bag is soft, buttery, and rather marvellous to touch. Real leather grows more beautiful as you use it, developing character like a distinguished chin or a well-worn leather jacket. It's biodegradable, durable, and fabulous in ways that synthetic alternatives simply cannot achieve.
Made Properly: Over a century of leather craftsmanship runs through our veins. Each bag is hand-finished by artisans who actually care, selecting only the finest leather for every single piece. This isn't rushed. This is properly made.
Delivered Like a Proper Gift: Your Rosie arrives in a beautiful cotton drawstring dust bag, making it ideal whether you're treating yourself or bestowing it upon someone you adore. Birthday, Christmas, graduation, or just because a Tuesday felt rather momentous.
Product Details
Dimensions: 34 by 13 by 25 centimetres
Material: Genuine sustainable leather
Design: Twin shoulder straps, three interior sections with mixed closures
Warranty: We stand behind our craftsmanship entirely. Should any defect appear within 12 months, we'll repair or replace it at no charge. Normal wear and character development are rather expected and rather wonderful.
Treat Yourself to Something Rather Good
This is the sort of bag people notice. Not because it shouts, but because it whispers quality. Order now and discover why others have already made it part of their everyday story.
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 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!