Techniche Cooling Vest Large Hyperkewl Evaporative Ultra Sport Motorcycle Biker Features: Pull-over w/mesh ventilation panels and scoop neck; ideal for runners and cyclists. Provides 5-10 hours of cooling relief per soaking; extremely lightweight, durable and washable. Size zip Comfortable, quilted nylon outer w/polymer embedded fabric inner, water-repellent nylon liner, and black cotton-poly elastic trim. Unisex, see size chart in photos Measurements also in photos, this is meant to be worn fitted to body We suggest you measure against any clothing items in your own closet and compare to measurements in photos or listing to ensure proper fit. REASONABLE offers always welcomed!