The Zigoo Bottle features a collapsible and lightweight design which helps you save 50% space. It's portable and easy to store. It reserves 18 oz. of liquid with only 198g in weight and it can collapse from 9.2" to 5.45" in height. Bottle is made from food grade silicone including a stainless steel lid with carabiner attached. It is leak proof and great for all types of activities and sports. Only the bottle (not lid) is dishwasher safe for easy cleaning and is designed with a wide mouth opening for filling ice cubes. Includes matching carabiner. BPA Free. 18 oz.