Durable calf 1.1 leather, smooth and soft natural look, Perforated front, back and sleeve panels, Removable Bio-Armor shoulders and elbow protectors, Back protector pocket (Alpinestars Nucleon back protector available as accessory upgrade, sold separately), Pre-curved sleeve construction with gusset over the elbow, Cuff adjustment includes snaps and zips, Back zippered gussets, Shoulder gusset, Two zippered hand pockets, Inner wallet pocket, Comfort collar construction, Embossed shoulder logo, Jacket runs one size small.