IOco

The lid. Most reusable cups have a plastic or silicone lid, so your drink still touches plastic. IOco's lid is glass, like the cup — so nothing but glass meets your lips, and the coffee or tea tastes exactly as it should.

Yes. The cups are borosilicate glass, dishwasher safe on the top shelf, and fully sterilisable. Hand washing is fine too, but they're built to handle daily dishwasher use.

It's hardened borosilicate — the same glass family used in laboratory glassware and teapots — so it handles heat and everyday use well. But it's still glass: drop it on a hard floor and it can break. If you want a knockabout cup, this isn't it; if you want the best-tasting one, it is.

4oz Piccolo suits espresso and short blacks; 8oz is a standard takeaway coffee; 12oz is the all-rounder for flat whites and lattes; 16oz is for long drinks, tea and travel. The 8oz, 12oz and 16oz also take the tea infuser and smoothie lid accessories.

It folds inside-out as it closes, so the wet side ends up on the inside — no drips through the house or car. The C-shaped handle hooks over your wrist to keep your hands free, and it stands upright on its own when closed. Selected styles add a UPF50+ layer for sun as well as rain.