1.3-1.4mm top quality cowhide outer shell construction. Perforated leather ventilation used on front chest and arms. Removable CE protector located in the elbow, shoulder and back. T-AIR system on shoulders for increase ventilation. EVA foam padding for shoulder, elbow, collarbone, rib, waist, back and back of neck. Neck support on back. Removable wind stop inner lining, adjust in all weather by removing on hot days for a cooler ride. 3M reflection for increased visibility in night time. Excellent elastic and strong Schoeller® Keprotec® on underarm for extreme tear and abrasion resistance. Perforated leather flex panel on elbow and shoulder. Connection zipper with pants.