Collapsible Water Bottle. Red, Blue or Gray. Compact design for perfect for any lunch box, purse or backpack. Collapsible water bottle has 7.5-oz. folded capacity and 16-oz. extended capacity. Designed to replace single-use plastic. Made of 100% food grade silicone that is leak proof and keeps drinks cold longer. Features a carabiner cap for clipping to bags and backpacks for easy travel. This Crofton water bottle is easy to clean and dishwasher safe.