Heavy cotton main shell, strategically reinforced with wind-resistant membrane plus bonded mesh for durability. Vent facing inserted behind button closure for improved levels of wind-resistance. Ventilation opening on rear yoke improves all-round breathability. Anatomically profiled, pre-curve sleeve construction. Two shirt-style chest pockets, one of which is waterproof with waterproof zipper. Customized snap buttons plus Velcro® front closures for secure, personalized fit. Double layer elbow patch for durability. Alpinestars logo on front and rear.