Klean Kanteen stainless steel Insulated Classic Sport kid bottle is designed with kids in mind. Our chip-resistant Klean Coat™ finish is four times more durable and safe for people and planet. Vacuum-insulated Climate Lock™ keeps contents hot up to 12 hours and iced up to 40 hours. Compatible with all Klean Kanteen Classic Caps for easy transition as kids grow up providing a lifetime of use, as long as they don't get lost! Sport cap recommended for kids ages 4+.