Joe Rocket's GPX jacket is made from premium top grain cowhide leather with CE approved armor at the shoulders and elbows. A combination of Variable Flow ventilation and perforated leather panels allow this motorcycle jacket to remain highly breathable while providing a barrier against the wind.; 1.2-1.4mm top grain cowhide leather CE level 1 shoulder and elbow armor Removable back armor Abrasion resistant Internal mesh lining Moisture wicking Zippered cuffs Variable Flow ventilation Heavy stitched panels Comfortable neoprene lined collar and cuffs Internal storage pockets Ykk zippers