Utterly Fetching and Surprisingly Practical

Seeking a backpack that doesn’t melt at the sight of rain, hauls your gear without resembling a gym sock, and perhaps even boosts your self-esteem by a sliver? This waterproof gem manages all that with a wink and a zip. No, it won’t do your laundry, but it might just make you feel marvellously put together.

Why Choose Our Aliens Waterproof Backpack?

Secure Pockets: Zip your treasures away with the comforting knowledge they’ll stay exactly where you left them. Even the keys. Probably.

Adjustable Roll Top: Expandable capacity to suit your moods and market hauls. Rolls down when you're light-packing, unfurls when you're hauling your life's work.

Hydration Integration: A bottle holder that’s loyally external. Because stumbling through your bag during a parched moment is simply unflattering.

Secret Compartment: A private nook for inconspicuous items like passports, chocolate bars, or love letters too thrilling to part with.

Weather Resistant Wonder: Crafted from impressively water-repellent fabric that shrugs off storms like a true British gent.

Travel Friendly: Tucks effortlessly into your luggage or takes pride of place as your clever carry-on. Handy, stylish, and perfectly agreeable.

Product Details:

Medium Size: Versatile enough for daily rendezvous. Holds 10 to 16 litres of essentials and aspirations. Dimensions: 37 cm base height plus 18 cm when unrolled, 28 cm width, 10 cm depth, main zipper 37 cm.

Large Size: For those who travel with backup outfits, books, or philosophical intentions. Capacity ranges from 15 to 22 litres. Dimensions: 40 cm base height plus 20 cm rollover, 31 cm width, 11 cm depth, main zipper 42 cm.

Each backpack comes with its own delightful individuality. A subtle curve here, a quirky seam there. Rather endearing, we’d say.

Secure yours today and add a fabulously practical companion to your daily commute or spontaneous weekend getaway.

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!

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.

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!