Even the world's clumsiest person couldn't drop this mug enough times to break it. Chuck it in your bag with peace of mind that it won't leak or get damaged by any bumps along the way. With a handy self-sealing trigger action, you can sip away as much as you like without having to open or close the lid. If you want to keep it open, there's a locking button on top of the lid.We haven't tried, but we're pretty sure this mug could tumble down Everest and still be ready to drink from when you reach the bottom.Vacuum-insulated travel mugKeeps contents hot for up to 6 hoursOne-handed self-sealing trigger with a lock-open buttonSuper-strong leak-proof cap - withstands impactFits in most cup holdersDishwasher safeBPA, BPF and BPS freeMaterial: stainless steelWeight: 205gCapacity: 350ml | 11.8fl oz