Our 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. Our 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!. Features:. Chip-resistant Klean Coat powder coat finish (Brushed Stainless has no coating).. 18/8 food grade stainless steel.. BPA Free.. Won\'t retain or impart flavors.. Slim design fits in most cup holders.. Includes Sippy Cap with Dust Cover and Swing Away Loop (not leak proof).. Compatible with all Classic Caps, including the leak proof Loop Cap & Sport Cap 3.0.. Backed by the lifetime Strong as Steel guarantee.. Specification:. Capacity 12 fluid ounces (355 ml).. Weight (w/ sippy cap) 5.5 ounces (156g).. Size (w/ sippy cap) 6.6\" H x 2.87\" W (170 mm H x 72.9 mm W).. Opening Diameter 1.75\" (44 mm).. Age 6+ months.