Alpinestars T-Dyno Air Jacket 600D polyester fabric with 3D and flat mesh inserts. Removable and adjustable CE certified Bio Armour protectors in the elbows and shoulders. Chest and back pad compartments with PE comfort padding on back (Alpinestars CE Bio Armour back protector insert and Tech Chest Guards available as accessory upgrade). Snap button waist adjustment. Velcro wrist flaps. Reflective logos for night time visibility. Internal waist connection zipper allows attachment to selected Alpinestars leather and textile pants. YKK® zippers.