The Lowepro Factor Messenger Medium Notebook Case is a water-resistant, dual-compartment messenger case. It features a well-padded compartment able to fit most 15.4" notebook computers, and a file and book compartment. There are pleated pockets for cords, adapters, tickets and personal items. It is carried by a rubber handle, an adjustable and breathable padded shoulder strap. Adjustable and breathable padded shoulder strap Material Exterior - 600 denier polyester and 300-denier poly ripstop Interior - 200-denier micro-fiber lining, open and closed-cell padding Accommodates 15.4 widescreen or similar-sized large notebook computer, and accessories Exterior Dimensions 18.3 x 4.9 x 11.6 (46.48 x 12.45 x 29.46cm) Interior Dimensions Notebook compartment - 14 x 1.8 x 10.8 (35.56x4.57x27.43cm) Front Pocket - 17.1 x 3.3 x 11 (43.5x8.5x28cm) Weight - 1.79 pounds (812 grams)