Heavy Duty 500d Hitena® nylon outer C.E. approved armor in shoulders & elbows Removable Spine Armor I.D. Pocket on vest Variable Flow? ventilation system Removable insulated vest liner Elastic sleeve adjusters SureFit? adjustable waist Snap loops for attaching jacket to belt Reflective stripe Pocket for audio device with port for wire Official licensed Product of the U.S. ARMY® (or under the license of the U.S. Army®)