"Soak the Ergodyne Chill-Its Evaporative Cooling Vest in cold water and enjoy cooling relief and comfort for hours. Constructed with a quilted 100 nylon outer layer and activated polymer-embedded fabric inside. Also has a water-repellent liner and cotton/poly elastic trim. V-neck style with zipper closure. Vest is lightweight, durable and washable. Great for workers in construction trades, maintenance, landscaping, assembly, material handling, freight, warehouse, iron/steel fabrication and more. Material 100 nylon outer layer activated polymer-embedded inside fabric, Color Gray, Front Closure Type Zipper, Size 2XL."