Perfect for outdoor work, commuting, and leisure in the scorching heat! This is a [water-cooling vest] that cools your body effectively just by adding water and chilling it in the refrigerator. 【Features】 Effective cooling with water-cooling (equipped with absorbent pads on the front x 2 and back x 1) Cooling power increases by about 50% when chilled in the refrigerator for 1-4 hours Slim fit design (recommended to go up one size for a more relaxed fit) Lightweight and compact for easy portability Unisex, suitable for a wide range of situations (outdoor work, motorcycling, camping, commuting, etc.) 【How to Use】 Pour water through the water inlet (front left and right: 500ml each, back: 1000ml) Flatten the vest to distribute the water evenly Chill in the refrigerator for 1-4 hours to increase cooling power Feel the coolness immediately after wearing! 【Recommended Uses】 Construction sites Factory and warehouse work Cycling and motorcycle commuting Heatstroke prevention Outdoor events such as camping and festivals