What Our Gearhead(R) Experts Are Saying:"I've been using the Rift 20oz Tumbler for longer days, and the leakproof lid makes a big difference. It holds temperature well and feels solid whether it's in my hand or in my bag."Some days don't leave time to stop and refill, so we carry what we need from the start. The Rift 20oz Tumbler from VSSL gives us the capacity and reliability to keep drinks where they should be-inside the tumbler and at the right temperature. Double-wall vacuum insulation keeps coffee hot and cold drinks chilled for hours, while the VaultLoc twist-lock lid seals tight to prevent leaks during travel. The ergonomic grip design makes it comfortable to carry, and the silicone bumper adds stability when we set it down on uneven surfaces. Built from durable stainless steel and sized for cupholder compatibility, it's ready for everything from morning commutes to long days outside.