This is for the YETI Rambler 12 oz Bottle with the Chug Cap. Please consider this if you understand. From the premium American outdoor brand "YETI," this is a popular series. The Rambler 12 oz Bottle (approx. 355ml) is a stainless steel bottle that combines an easy-to-use size with YETI's signature high durability and excellent insulation performance. Thanks to the "Double-Wall Vacuum Insulation" construction, cold drinks stay cold for a long time, and hot drinks stay hot. Made of 18/8 stainless steel, it is resistant to rust and impact, and is perfect for camping, hiking, the office, and any other situation.