Hydration Made Effortless! 💦 Designed to fit standard cup holders effortlessly. 18/8 stainless steel withstands the toughest conditions. DuraCoat finish resists fading, peeling, and cracking. Chug Cap for quick hydration on the move. Double-wall insulation keeps drinks cold or hot. 18 oz Capacity Vacuum Insulated Durable Stainless Steel The YETI Rambler 18 oz Bottle is a robust, vacuum-insulated stainless steel water bottle designed for on-the-go hydration. Featuring a convenient Chug Cap and a durable DuraCoat finish, this bottle keeps your drinks at the perfect temperature while fitting seamlessly into your lifestyle.