Ideus travel tumblers
Sliding-lid tumblers built around the car cup holder.
Choosing an Ideus tumbler
Tumblers are the commuting half of the range: taller, narrower and shaped to drop into the console rather than to sit under a hand. The sliding lid is the signature, and it is a splash guard rather than a seal.
If the car is the reason you are buying, the fit question matters more than the volume question, and it is the one nobody can answer from a product page alone, The Ideus descriptions do not publish a base diameter for any piece here. The cup-holder page hands you a printable ring instead of a number we cannot source.
| Piece | Lid type | What the maker says | Into a bag? |
|---|---|---|---|
| 17 oz travel tumbler | lid | Not stated the maker gives this lid no leak rating, so carry it upright | No rating. Carry it upright. |
| 20 oz travel tumbler, sliding lid | sliding | Splash-proof the maker calls this a splash-proof lid and states in the same description that it is not leak-proof | No. Carry it upright. |