Prestoor’s 34oz Double Wall Tumbler solves a simple problem: keeping your drink where it belongs. The patented TwistLock lid uses a one-piece silicone seal and three distinct modes. Lock Mode seals the cup completely—no leaks in a backpack or gym tote. Unlock Mode lets you refill without fighting a stubborn cap. Wash Mode allows full disassembly for cleaning. That third mode matters because silicone seals trap residue and odors over time. Being able to pull everything apart and scrub it clean extends the tumbler’s useful life significantly.

The 34oz capacity covers a full work shift or a long workout without refilling. Double-wall insulation keeps iced coffee cold and smoothies thick for hours. The included straw works well with thicker drinks like matcha lattes or protein shakes. The pink finish is matte and resists fingerprints better than glossy tumblers. One honest note: the lid has multiple moving parts, so it requires a bit more attention than a simple screw-on cap. But if you’ve ever had a bag soaked by a leaky travel mug, that trade-off is worth it.