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At two or four litres, the Big Mouth isn't sized for one person's day, it's sized for pouring out. Come with the set of four stackable cups and it stops being a bottle you drink from and starts being one you serve from, which is really the whole difference. The oversized shape isn't just for show either — it's built to hold enough for everyone in the group to get a proper share, not a token top-up. It now ships in paper wrap instead of a card tube, cutting packaging weight by 70% along the way.
| Keeps cold | Up to 72 hours |
| Keeps hot | Up to 48 hours |
| Leakproof | Yes |
| Handle | Integrated carry/pour handle |
| Base | Rubber / silent base |
| Dishwasher safe | No — hand wash |
| BPA-free | Yes |
| Spec | 2L | 4L |
|---|---|---|
| Capacity | 2,000ml | 4,000ml |
| Height | 26.5cm | 37.6cm |
| Diameter | 13.3cm | 14.8cm |
| Empty weight | 862g | 1.511kg |
Chilly's started with a straightforward gripe: single-use plastic bottles were everywhere, and nothing on the market felt worth carrying instead. Two friends in London decided to fix that themselves, launching the original Chilly's Bottle in 2010 — proper flask performance in a shape you'd actually want to be seen with. That balance of performance and design became the whole point, and it's what's carried the brand ever since.
It's since taken them somewhere most bottle brands never go: treating their products as a canvas for artists, musicians and fashion houses rather than just kit. Tate-inspired prints, a RÆBURN collaboration built from upcycled RAF life rafts, a Dover Street Market collection that made it into Vogue — proof that reusable doesn't have to mean boring. Pick one up and it's obvious why so many people have swapped bottled water for good.
At two or four litres, the Big Mouth isn't sized for one person's day, it's sized for pouring out. Come with the set of four stackable cups and it stops being a bottle you drink from and starts being one you serve from, which is really the whole difference. The oversized shape isn't just for show either — it's built to hold enough for everyone in the group to get a proper share, not a token top-up. It now ships in paper wrap instead of a card tube, cutting packaging weight by 70% along the way.
| Keeps cold | Up to 72 hours |
| Keeps hot | Up to 48 hours |
| Leakproof | Yes |
| Handle | Integrated carry/pour handle |
| Base | Rubber / silent base |
| Dishwasher safe | No — hand wash |
| BPA-free | Yes |
| Spec | 2L | 4L |
|---|---|---|
| Capacity | 2,000ml | 4,000ml |
| Height | 26.5cm | 37.6cm |
| Diameter | 13.3cm | 14.8cm |
| Empty weight | 862g | 1.511kg |
Chilly's started with a straightforward gripe: single-use plastic bottles were everywhere, and nothing on the market felt worth carrying instead. Two friends in London decided to fix that themselves, launching the original Chilly's Bottle in 2010 — proper flask performance in a shape you'd actually want to be seen with. That balance of performance and design became the whole point, and it's what's carried the brand ever since.
It's since taken them somewhere most bottle brands never go: treating their products as a canvas for artists, musicians and fashion houses rather than just kit. Tate-inspired prints, a RÆBURN collaboration built from upcycled RAF life rafts, a Dover Street Market collection that made it into Vogue — proof that reusable doesn't have to mean boring. Pick one up and it's obvious why so many people have swapped bottled water for good.
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