. Heavy duty 630 Hitena® twill nylon outer . 100% Waterproof textile jacket . C.E. rated protectors in shoulders and elbows . Removable spine pad with pocket for optional C.E. spine protector . Variable Flow™ ventilation system . Cross Linked Ventilation™ With Wind Tunnel Cooling Patent Pending . Removable insulated full sleeve liner . Sure Fit™ adjustable waistband . 8” zipper for pant attachment . Reflective art