Combined Waterproof treated Rock Tex and Hitena outer shell for maximum impact resistance Externally accessible C.E. approved armor in shoulders & elbows Removable Spine Armor with Pocket for Optional C.E. Spine Protector Variable Flow ventilation system with waterproof zippers Cross Linked Ventilation with Wind Tunnel Cooling Patent Pending Full Flex articulated back expansion panels Comfort neoprene cuff design 6 point Sure Fit custom adjustment system 2 outside pockets, 1 internal chest pocket Large padded lower back storage pocket 8 zipper plus 2 belt loops for jacket to pant attachment Removable insulated full sleeve liner with internal pocket 360 Reflective panels & logos