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Ridiculously Cosy Slipper Boots That Actually Work Outdoors
Look, we've all pretended our regular slippers could handle the great outdoors. They can't. These rather marvellous slipper boots, however, are rather good at bridging that gap between 'proper footwear' and 'blissful comfort'. Named after a proper mountain, they're built for people who refuse to choose between adventure and cosiness.
Why Choose Our Ossa High Slipper Boot
Grip That Actually Grips: Our signature high grip outsoles are made from recycled rubber and genuinely flexible. They'll take you from kitchen tiles to garden paths without fussing about it. Splendid for those of us who are somewhat accident prone.
Plush Faux Fur Lining: Wrapped in utterly fetching soft faux fur that feels rather luxurious underfoot. Properly cosy without the guilt of harming anything. It's the kind of warmth you'll want to experience with every step, we promise.
Wear It Your Way: The high top design rolls down or stays up, depending on your mood and how much ankle coverage you fancy today. Flexibility disguised as style, really.
Made From Second Life Materials: The felt uppers are crafted from recycled plastic, the insoles spring from plant derived organic materials, and the outsoles use recycled rubber. Every pair is a small act of not making things worse, which is rather fabulous.
Do Good With Every Wear: Each purchase recovers the equivalent of 80 plastic bottles from ocean shorelines and riverbanks through our partnership with waste collection initiatives in South East Asia and Africa. Harmful plastic becomes your cosy boots. That's rather good maths.
Product Details
Upper Material: Recycled PET felt, vegan friendly alternative to traditional wool
Lining: Plush faux fur for maximum warmth
Sole: High grip recycled rubber outsole, flexible and durable
Insole: Plant derived organic foam
Colour: Navy and Grey
Style: High top, rollable design
People tend to keep these rather longer than expected, which speaks volumes. Order now and join those who've discovered that cosy and capable needn't be mutually exclusive.
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. Explore our British makers, discover sustainable brands, browse women-led businesses, find the perfect gift for her, or simply wander through our new arrivals and see what finds you.
This is just the beginning. But enough about us — read all about us, or step inside and see what catches your imagination.
A Curated Marketplace for Independent Ethical Brands
Discover our world of independent brands, conscious design, and purposeful creativity — all in one place.
Sostter is more than a marketplace. We're here to inspire a more thoughtful way to shop — one that celebrates the makers, the dreamers, and the independent brands doing things properly. Every brand on Sostter has been individually vetted for its originality, quality, and values. From sustainable fashion and ethical homeware to handmade jewellery and design-led gifts — all brought together in one considered space. Browse by location, by purpose, or simply wander and see what finds you. Want to sell with us? We'd love to hear from you.
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