Just the right size for little hands, HYDRO FLASK for kids is made with the same stainless steel and double-wall vacuum insulation as their bigger bottles. Every sip stays icy cold for up to 24 hours, so at your child's breaktime or at the end of their after-school club, the perfect refreshment is waiting for them. With a colourful, easy-to-clean Straw Lid and a durable Flex Boot this is the perfect companion for any adventure, be it big or small. Please note that the Wide Mouth Straw Lid is not leakproof and is not intended for use with hot liquids.