Extra durable 420 denier Metallic Silver Dobby PVC. Two main compartments. Removable, padded protective case for laptop computer and slim exterior side pockets for cell phone storage. Two large exterior zippered pockets. Two interior mesh pockets, 6 pen holders, two pockets for PDA or calculator and four business card sleeves. Non-slip padded comfort strap w. swivel clips. Inverse zippered pocket easily slips on to rolling luggage for convenient travel. 17"W X 13"H X 5"D.