The Navy Canvas Crossbody Bag is handmade of beautiful full-grain leather and heavyweight cotton canvas, with a solid brass zipper. Navy Canvas is a type of cotton canvas known as duck cloth. It's one of the most durable types of cloth, and it's structured enough to stand up on its own. The Navy Canvas Medium Crossbody Bag comes standard with a Cognac Cypress gusset. If you'd like to add a crossbody strap, you can choose from one made in the same leather as the gusset of the bag — a vintage-inspired chain link strap, a super-adjustable slider strap, or a squishy two-ply strap — or go with a classic crossbody strap in Tan or in your choice of belting-weight leather.