This spacious pack features a laptop sleeve FlexVent injection-molded shoulder straps and a comfortable padded mesh back panel with a spine channel The optional waist belt offers added support and the front compartment comes complete with an organizer Strategically placed reflective trim offers 360-degree low-light visibility and an array of external and internal pockets means theres a spot for all of your gear Two-way top-zip closure Top carry handle sternum strap with whistle buckle optional waist belt Exterior fleece-lined zip pocket front mesh pocket two side mesh pockets reflective light loop Interior zip and wall pockets padded laptop compartment fits most 15 Inch laptops Nylon or polyester/nylon Spot clean Imported Mens Furnishings