VSSL Rift Tumbler 20oz Stone. The VaultLoc twist-lock leakproof lid delivers peace of mind with every sip while the articulated base design offers a secure ergonomic grip. A slip-resistant silicone bumper protects surfaces and keeps the tumbler steady on the move. Constructed from durable recycled stainless steel with double-wall vacuum insulation Rift locks in heat or cold for hours giving you reliable performance in a larger size. Package Contents: VSSL Rift Tumbler 20oz VSSL B211029-020: Rift Tumbler 20oz Stone