Iron Weave Mesh Chassis, with comfortable Stretch Nylon panels, plus additional layers of 300D Polyester in the high-impact areas Large areas of Iron Weave Mesh on the front, back, and forearms provide optimum airflow for hot weather riding Removable full-length insulated liner Reflective accents Premium YKK® zippers, zippered cuff closure D3O® impact protectors in the shoulders, elbows and back -