Material: 60% cotton, 40% polyester, ripstop 7 oz; Oeko-Tex 100 certified; Mesh fabric in back and front joke; Side hammer loop; Wide belt-loops; Metal buttons; Front closure - Double zippers at the front for adjustable width; Loose-hanging chest pockets with nail pockets, one with telephone pocket and one with pen pocket; Nail pockets front and back, one with bit pocket with zip; Extended back