The special Zigoo 18 oz. bottle features on-trend tie-dye look. And the collapsible and lightweight design helps you save 50% space. It's portable and easy to store. It reserves 18oz liquid and it can collapse from 9.2inch to 5.45 inch in height. Bottle is made from food grade silicone including a stainless steel lid with carabiner attached. Only the bottle (not lid) is dishwasher safe.