· The perfect addition to your rough commutes, day hikes, or kayak sessions, this insulated water bottle has the power to keep your water cold (or coffee hot) until the last sip. And with the leakproof while closed YETI Straw Cap, you’ve got a bottle made for every day, easy sippin’· DOUBLE-WALL VACUUM INSULATION - Keeps cold drinks cold and hot drinks hot until the last sip, and the No Sweat exterior· 18/8 STAINLESS STEEL - Made with kitchen-grade stainless steel, so they’re puncture and rust-resistant· DISHWASHER SAFE - Because no one needs more work to do· Note: Do not use the YETI Rambler Bottle Straw Cap with hot, carbonated, or pulpy beverages or for storage of food or perishables