The outer covering of this 76-key keyboard gig bag is heavy-duty 440D twill nylon to lock out dirt and spills. Inside, foam padding absorbs the bumps of normal handling. Edges and handles are made of thick parachute webbing for extra strength and durability. The keyboard bag has a carry handle, shoulder strap, and double jumbo zippers. Interior dimensions: 50.5″ x 7″ x 16.5″.Heavy nylon outer shellPlush padded interiorReinforced with heavy webbingInterior dimensions: 50.5″ x 7″ x 16.5″.