The Klean Kanteen stainless steel Insulated Kid Classic 12oz (355ml) water bottle is designed with kids in mind. The spill-proof sports cap with removable soft silicone spout for easy cleaning, and easy carry loop so it can be attached to a bag, backpack or stroller. Designed to play hard, our chip-resistant Klean Coat finish is durable and safe for people and the planet. Vacuum insulation keeps contents iced for up to 40 hours. Narrow profile for easy gripping that fits little hands perfectly. Interchangeable caps for easy transition as kids grow up, providing a lifetime of use. Sport cap recommended for kids ages 4+. But the greatest thing of all? It's got unicorns on it!! Note: Sport Cap is not leakproof.