Constructed of lightweight, high-tenacity 210/330 denier nylon and 210 denier ripstop nylon the BLACKHAWK! ultra light 3-Day Assault pack offers an easy-access main compartment with front pocket and map pocket and s.T.R.I.V-neck shortbeyond webbing over the entire pack. Compatible with BLACKHAWK! hydration system. Four exterior compression straps. Five interior tie-down loops. Padded shoulder straps with D-rings. Compartments are closed by durable YKK zipper and sliders with silent pulls. Removable heavy-duty waist belt and a loop fastener on front of pack for identification patch attachment.