New drop
Dual-Layer Tumbler
A borosilicate glass cup inside a double-wall steel shell. 600 ml for iced matcha, boba and cold brew.
- Your drink only touches glass: no metal taste, ever
- Keeps iced drinks cold for hours, outside stays dry
- Wide mouth for big ice cubes and boba pearls
- Straw lid included, fits most car cupholders
- Glass liner lifts out for easy cleaning
★ for shipping updates and first dibs on drop 02
✓ Ships from Spain · 14-day returns after delivery
What is it
The Yuzu tumbler is two cups in one: a clear borosilicate glass cup that holds your drink, sitting inside a double-wall stainless steel shell that keeps it cold. Glass for taste, steel for temperature.
Who it's for
For anyone whose day runs on an iced matcha, a boba or a cold brew, and who cares how it tastes and how it looks. Desk, car, gym, studio: it goes where you go.
How to sip
Fill with ice first, then your drink. Clip on the lid, add the straw, sip slow. Lift the glass out to show off the layers.
Materials & care
Borosilicate glass liner, stainless steel shell, silicone ring and straw, BPA-free lid. Hand wash the shell to keep the colour bright. Do not microwave or freeze.
Complete the ritual
Why two layers
work better
Each layer does one job well. Together they make the cup you will actually use every day.
The glass
Borosilicate glass handles cold and hot without cracking, and keeps the taste clean. It is the only thing your drink touches.
See full specs
The shell
Double-wall vacuum steel keeps ice frozen for hours, with no sweating rings on your desk.
See full specs
The lid
A snug straw lid with a silicone ring. Spill-resistant for everyday sipping, and the straw is wide enough for boba.
See full specsThe specs
- Height (with straw)
- 21.5 cm
- Width
- 11.2 cm
- Capacity
- 600 ml shell · 570 ml glass
- Inner cup
- Borosilicate glass
- Outer shell
- Double-wall stainless steel
- Lid & straw
- BPA-free, silicone ring
- Care
- Hand wash recommended
Finally, a cup
that does it all
Room for ice, milk and a double shot of matcha
Layers: glass for taste, steel for temperature
Metal taste. Your drink only touches glass
Cups in drop one. When they're gone, they're gone
Where Yuzu shines
hint: it's not just the colour.
| Feature | Yuzu tumbler | Steel tumbler | Plastic cup |
|---|---|---|---|
| Your drink only touches glass | ✓ | ✕ | ✕ |
| No metal or plastic aftertaste | ✓ | ✕ | ? |
| Keeps iced drinks cold for hours | ✓ | ✓ | ✕ |
| See the layers of your drink | ✓ | ✕ | ✓ |
| Colours that make your desk happy | ✓ | ? | ? |
Made for your
camera roll
Drop one is brand new. Share your first sip and you might end up right here.
Your review here.
Your review here.
Your review here.
Tumbler FAQs
what to know before you sip
When will my pre-order ship?
Drop 01 is in production now. We expect to ship all pre-orders by mid-January 2027 and will email you the tracking number as soon as yours leaves.
Can I cancel my pre-order?
Yes. Email us at info@yuzuculture.com any time before your order ships and we refund you in full.
Is it leak-proof?
Not fully. The lid is spill-resistant for everyday sipping, but it is a straw lid, so keep it upright in your bag.
Can I use it for hot drinks?
Yes, the glass handles heat. Sip slowly through the straw. It really shines with iced drinks though.
Is it dishwasher safe?
Lift out the glass and hand wash all parts. It keeps the colour of the shell bright for longer.
What if the glass breaks?
Borosilicate glass is tough, but accidents happen. Spare glass liners are coming soon, so you only replace the glass.
Does it fit my cupholder?
The base fits most car and bike cupholders. Check the size above if your car has a narrow one.
How fast is shipping?
We ship from Spain. Pre-orders ship by mid-January 2027; after that, orders leave within 1–2 working days. Prices per country are shown at checkout.
Can I return it?
Yes, you have 14 days from delivery to return unused items.
Glass-lined, no metal taste
Designed in Spain14-day returnsSecure checkout