Baggallini Convertible Backpack Crossbody Bag, Adjustable, Blue Size: Approximately 11.5 inches by 12 inches, and 4 inches deep, when measured flat (see photos). Condition: Excellent Preowned Condition; used only a few times. No known defects. Smoke free and pet free home. Adjustable and removable strap turns the bag into a backpack, shoulder bag or crossbody bag. Lightweight Exterior zippered pocket for cell phone Interior zippered pockets, credit card slots, and a key leash Removable interior coin purse Top handle Body: 100% Nylon Lining: 100% Polyester