
Girl Boss Stainless Steel Water Bottle 500ML
Retrait actuellement non disponible
Hydration Worth Showing Off
Yes, it's a water bottle, and yes, it's absurdly stylish. The kind of bottle that says you’ve got it together (or at least enough to sip smartly during meetings and Pilates sessions you mostly attend for the leggings). With a 500ML capacity and a delightfully sleek design, it makes you feel rather on top of life... or like you might be, any moment now.
Why Choose Our Girl Boss Stainless Steel Water Bottle?
Temperature Control: Keeps Drinks Just Right
Thanks to clever double-wall insulation, your tea stays hot for 6 hours and your water refreshingly cold for 12. Like a trusty sidekick who understands your beverage preferences better than your flatmate.
Leakproof Lid: Save the Handbag Drama
You deserve hydration without the horror of a soaked tote. The vacuum-sealed cap keeps liberties taken with your bag contents to an absolute minimum.
Utterly Fetching and Gloriously Reusable
Looks gorgeous on your desk and scores eco-points without shouting about it. Because doing your bit for the planet shouldn’t clash with your outfit.
Product Details:
- Capacity: 500ML
- Temperature Retention: 12H Cold / 6H Hot
- BPA Free
- Eco Friendly Design
- Leakproof and Durable
- Designed in Estonia
- Suitable for hot and cold liquids (best avoid fizzy ones)
- Care Instructions: Hand wash with a brush and baking soda to keep things fresh
- Avoid placing in oven, freezer or microwave
Pop it in your basket now, before your calendar fills with excuses
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 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.
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!