The Nalgene All-Terrain Bottle is just right to supply you with water, carbohydrate beverages, or your favorite drink wherever you are. This bottle fits bicycle bottle holders, and waist pack or backpack pockets. It is made of sturdy economical Poly-Ethylene, making it durable and easy to clean. A unique Lexan mud cap keeps the drinking spout dirt free. It features a standard Nalgene 63 mm wide mouth which easily accommodates ice cubes or most water purifiers and filters. It is top rack dishwasher safe and withstands temperatures from -148ºF (-100ºC) to 176ºF (80ºC).