Weight: 0.4 lb. Dimensions: 5L x 5W x 8H in 18/8 stainless steel, BPA-free Leakproof and Packable Integrated lanyard- never lose your cap Lightweight yet durable, this flask is made from 18/8 stainless steel and is BPA-free. The leakproof design and built-in lanyard make it easy to pack for any outing.