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The Grey Wool Mule Slipper That Actually Fits
Look, we've all pretended our old slippers were fine. They weren't. These rather splendid mules are the sort of thing you'll find yourself reaching for before you've even finished your morning coffee, which is precisely the goal when you're shuffling about in what amounts to a sock with delusions of grandeur.
Why Choose Our Wool Mule Slippers
Memory Foam Comfort: Your feet will thank you for this small kindness. The memory foam molds to your unique shape, making each step feel rather fabulous and supportive, whether you're pacing about the kitchen or settling in for the evening.
Warm Wool Lining: Properly cosy without being stifling. The textile lining keeps your feet at that glorious sweet spot between toasty and not-overheating-like-you've-wrapped-them-in-a-duvet.
Slip On Simplicity: No faffing about with fastenings. You simply slip them on and carry on with your day, which is how slippers were meant to be.
Flat Sole Design: A modest heel height under 2.5cm means proper stability and the sort of easy elegance that works whether you're shuffling to answer the door or actually leaving the house.
Product Details
Upper Material: Textile blend for durability and breathability
Sole Material: Synthetic for grip and longevity
Shoe Width: Regular fit
Toe Shape: Round for natural comfort
Weight: Lightweight at half a kilogram
The sort of purchase you won't regret. Rather good indeed.
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!