Heavy duty 600D-denier poly.  Spacious 12.5 x 18.5 x 6.3"  100% polyamide; 100% polyester lining; Water repellent; fits up to a 17" laptop. Front access stash pocket with organization panel; Top-loading main compartment; Deep side pockets including mesh pocket overlay; Large front external zipper pocket. Sternum and compression straps. Padded shoulder straps and back panel with mesh inserts. L&W Supply logo embroidered in traditional colors for a "classy, high end" look.