18/8 Stainless Steel construction.
Klean Coat™ powder coat finish is 4X more durable than our previous finish and formulated for human and environmental health (Brushed Stainless has no coating).
Electropolished interior, a safe & non-toxic process, and rounded corners make it easy to clean.
Includes the spill proof Sippy Cap.
Compatible with all Classic Caps, including the leak proof Loop Cap & plastic-free Bamboo Cap.