Evaporative Cooling Vest: Soak in cold water, and enjoy cooling relief and comfort.V-neck with zipper closure Quilted nylon outer layer Activated, polymer-embedded fabric inside Water-repellent liner and black cotton-poly elastic trim Lightweight, durable, and washable Soak in water 2-5 minutes to activate Remains hydrated for up to 4 hours Mesh side panels offer improved ventilation and stretch 100% nylon Gray, Lime