This lightweight and compact collapsible bottle is 20oz when fully expanded, and 8oz when fully collapsed. Made from 100% food-grade silicone with 18/8 stainless steel cap, the bottle is BPA and plastic free, and has no natural odor or taste. The bottle is dishwasher safe, leakproof, shockproof, safe with extreme temperatures, and has a wide mouth for ice cubes. Weighs 7.1 oz. Assorted colors.