The Bear Vault BV450 Bear Resistant Food Canister is a super rugged transparent polycarbonate storage container that resists impacts without shattering. The lid has an innovative patented design that you can open and close without tools. The mouth is extra wide so it provides full access for loading and unloading and the transparent design allows easy identification of contents. The recessed guides in the side of the bottle keep tie down straps in place for easy attachment to your pack. Black Bear approved by SIBBG, Grizzy Bear approved by IGBC.