Features: Foldable - Stands upright when full. Rolls, folds or flattens when empty Freezable - Can be frozen to keep beverages cold Attachable - Included carabiner can be attached to any bag, purse or backpack. Washable - To clean this water bottle just fill with warm water and shake empty and repeat before using again. Reusable and Safe - Ultra-durable & environmentally friendly Identifiable - Writable area on back for easy identification Material: non-toxic PE material Bottle capacity: about 380ml (Standard water bottle is 330ml) Length with cap: 27cm approx Bottom width: 12cm approx Color by random