50% Polyester Jersey, 50% PU Imported DRY & COMFORTABLE – Exclusive patented dry technology keeps wearer completely dry and comfortable during the entire evaporative cooling process LONG-LASTING EFFECT – Up to 3 days of cooling power to help maintain a healthy body temperature EASY ACTIVATION – Fill vest with 13oz - 20oz / 400ml - 600ml of water LIGHTWEIGHT & DURABLE – made of industrial grade quality nylon VENTILATED COMFORT – Mesh side-panels provide additional ventilation and stretch SNUG FIT – V-neck design with front zipper closure