Foldable & Space Save:The large-capacity water bottle can reserve 600ml liquid, Light weight, approx. 150g. Compact size before folding: 600ml; After folding: 200ml. The silicone water bottles can be folded from 7inch to 4inch. Collapsible and lightweight design allow you to save much space, portable and easier storage. 100%Leak-Proof & BPA Free Silicone: The kids water bottles is made from non-toxic materials and BPA free food grade silicone, has no taste or smell and can be used for both hot and cold drinks. Child water bottle bottle has a leak-proof cap, Wide-mouth opening is easy to fill with ice and water. Reusable & Durable: The collapsible water bottle won't fade with use. It is collapsible, soft, unbreakable and dishwasher safe.Your child can easily walk around while exploring the outdoors without spilling their drink. Portable Keychain: The foldable water bottle has a metal keyring and is easy to carry or hang on your child's backpack. The child can also easily fold it up and put the leakproof water bottle in their backpack. Wide Application: The kids sports water bottle is good for taking your water with you at school, picnic, games, hike, cruise or gym. When fully folded, the drinking cup takes the shape of a round football and it makes an ideal gift for children on birthdays, Children's Day, Halloween and Christmas.