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The Bag That Does Everything (Rather Well, Actually)
Right, so we've rather stumbled onto something rather marvellous here. This convertible backpack purse is the sort of bag that starts as a proper backpack, morphs into an oversize tote whenever you fancy, and somehow manages to look utterly fetching doing both. Award-winning design, genuinely, and over 1400 five-star reviews from rather satisfied humans who've made it their go-to companion for work, travel, and everything in between.
Why Choose Our Convertible Backpack Purse
Beautifully Crafted From Responsible Materials: Organic cotton certified by the Global Organic Textile Standard paired with supple vegan leather free of PVC and finished with natural wood trims. Rather good on the conscience and the touch.
Two Bags In One, Honestly: Simply tuck the backpack straps into the rear panel and you've got yourself a rather handsome tote. No faffing about required.
Roomy Enough For Real Life: Fits a laptop, a change of clothing, books, and whatever else you've optimistically packed. The interior is sensibly organised with five pockets including a zippered compartment for your phone and valuables, mini pockets for sunglasses and keys, and a dedicated back pocket for transit cards.
Delightfully Practical Design: The 8.5 inch handle drop sits comfortably on your shoulder when worn as a backpack, and the dimensions (17 inches tall, 14.5 inches wide, 4.5 inches deep) mean it holds laptops up to 14 inches without any awkward folding about the top.
Product Details
Dimensions: 17 inches high by 14.5 inches wide by 4.5 inches deep when fully extended. Folds to 14 inches high for tote mode.
Handle Drop: 8.5 inches
Capacity: Comfortably accommodates 14 inch laptops, clothing, and books
Pockets: Five organised compartments including zippered pocket, sunglasses pocket, keys pocket, and transit card slot
Materials: Organic cotton with eco-friendly dyes, vegan leather without PVC, and wood trims
This is the sort of bag people rather admire. Given the following from our community, we suspect you might rather enjoy having one of your own.
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!
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!