The stainless steel Classic Sippy kid bottle is designed with kids in mind. Spill proof sippy cap with dust cover and swing away metal loop so it can be easily attached to stroller or bag while swinging out of the way for drinking. Bright cap colors and graphics keep hydration fun. The chip-resistant Klean Coat finish is four times more durable and safe for people and planet. 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!