VSSL's Rift Tumbler is built for people who are always on the move. A lockable sprung lid means no spills in your bag, the anti-slip base stays put on uneven surfaces, and the included loop lets you clip it to just about anything. Built from extra-thick recycled stainless steel with double-wall vacuum insulation, it keeps coffee hot or cold drinks chilled for hours whether you're commuting, hiking, or working from wherever you've ended up today. Available in 10oz, 16oz and 20oz sizes, all are cupholder compatible and dishwasher safe for everyday convenience. It also happens to integrate perfectly with VSSL's Nest Pour-Over systems if you're serious about outdoor coffee, but it works brilliantly as a standalone tumbler too.