It wouldn't be a YETI if it wasn't tough, and YETI Rambler Bottles are no different, with an 18/8 stainless steel construction that stands up to the toughest conditions. Now get to drinking faster with the Rambler Bottle Chug Cap. It just takes a quick half-twist of the TripleHaul Handle to open and then you’re good to go, making it easy to steal a sip without slowing down. Its classic spout allows for speedy gulps, plus it’s shatter-resistant and dishwasher safe. Like the rest of YETI's Rambler series, YETI Rambler Bottles feature a No Sweat design to prevent condensation from collecting. The Chug Cap is not intended for use with hot beverages.