YETI. RAMBLER 18OZ BOTTLE WITH CHUG CAP. HARVEST RED. The Rambler 18 oz. Bottle is a necessary addition to your morning hikes kayak trips and daily commutes. This tough bottle is double-wall vacuum insulated to keep your water cold until the last sip dishwasher safe for easy cleaning and comes standard with the Chug Cap. With a quick twist the TripleHaul handle comes off exposing our shatter-resistant dishwasher safe spout that allows for controlled gulps on the go. When it s time for a wash or refill remove the entire cap to expose the bottle s wide mouth.