Premium leather main construction from 1.3mm genuine bovine leather, Stretch panels on sleeves and chest, Pre-curved sleeves, CE-certified Bio Armor shoulder and elbow guards, Shoulders also feature overmolded advanced Thermoplastic Polyurethane (TPU) guards, Chest and back pad compartments with PE padding (Alpinestars Nucleon chest/back guard inserts available separately), Multiple snap button system to integrate the Nucleon back protector (available separately), Hook-and-loop waist adjustment, Microfiber comfort edge on cuffs, Two zippered hand pockets and inner waterproof wallet pocket, Embroidered logos, Zippered air intake vents and localized perforations for cooling airflow, Low-profile collar with microfiber comfort edging and 3D textured fabric inner collar lining