This small Stanley© flask is crafted with quality, perfect for any outdoor adventure. Fill it up andtake it along for the next kayak trip, camping trip or night out with friends. Single wall constructionand made with 18/8 stainless steel, it is rustproof and BPA-free. An integrated lanyard helps ensureyoull never lose your cap. It is leak proof allowing for all hands on deck when youre not quenchingyour 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