Built-tough and ready for the morning commute, the CamelBak Forge Flow SST Vacuum Sealed 20 oz Travel Mug is made from insulated stainless-steel and has a powder coat finish for added durability. This newly redesigned travel mug has an innovative cap with one-handed drink lever and free flow locking capabilities for cooling or frequent sips. With a non-slip base and leakproof cap, the Forge Flow stainless-steel travel mug is a trustworthy copilot for beverages on-the-go.