Jolt travel mug

Insulated mug that's easy to open even if you've closed it too tightly. Its leak-proof function only fails if you shake it upside down, and nobody does that.
It's an efficient mug, with no surprises and not much conversation. Just what you'd expect from a mug.

Double-walled stainless steel mug with polypropylene (PP) lid
Capacity: 350 ml
Leak-proof
Dimensions: 8.5 x 14 cm
Dishwasher safe: yes!