The Urban Peak® 20oz Portage Flip Straw Water Bottle is crafted with a dual-walled stainless steel design, featuring a copper-lined, vacuum-insulated liner to maintain optimal drinking temperatures. It's lead-free, with a vacuum seal, and includes a twist-off lid with an easy-to-carry handle and a built-in flip straw. This bottle also comes with two detachable internal PE straws, a sweat-free design, and a powder-coated finish, embodying a commitment to quality and sustainability.