Sumdex Full Speed Rain Bumper Backpack - 15.6" 18.25" high 13.25" wide Computer backpack designed for the new 15.6" notebook computers, Hidden "Rain Mask" at bottom for protection from moisture, large capacity file compartment for books, folders, binders and larger accessories. Multi-functional work-station compartment, easy access front zippered pocket for smaller accessories. Easy access front zippered pockets for smaller accessories, ergonomic "S" shaped shoulder straps and padded handle for ease of carrying. Back panel with air circulating mesh and lumbar pad, made of lightweight water repellent polyester fabric. Top loading padded computer cradle with anti-scratch velvet lining and securing strap.