This small Stanley© flask is crafted with quality, perfect for any outdoor adventure. Fill it up and take it along for the next kayak trip, camping trip or night out with friends. Single wall construction and made with 18/8 stainless steel, it is rustproof and BPA-free. An integrated lanyard helps ensure youll never lose your cap. It is leak proof allowing for all hands on deck when youre not quenching your thirst.1 1/4"L x 2 1/4"W x 4 3/4"H5oz.0.20lb.Single wall construction and made with 18/8 Stainless SteelRustproof and naturally BPA-freeIntegrated lanyard so you'll never lose your capLeak proof so fully packableLifetime warranty