Comfortable neoprene inside with EVA molded pillow. The load bearing frame is built on the MARK II internal load plate. The neoprene waist belt made for comfort and grip makes it easy to take on and off. Included is a molded slide-in bar pad with the ultra rigid Fat bar gives it incredible stability. Multiple leash attachment points, patented Pin release spreaderbar and neoprene softedges eliminate chafe. Dual foam system. 4 Way MPL webbing spreaderbar. Low profile back support is all included in the VEX harness, making it the most capable harness on the market.