Feature●Adjustable Shoulder and Side Strap: unisex sizing chart, you can customize the fit for a comfortable and snug feel by adjusting the shoulder and side straps, dont worry about clothes being too big or small anymore, and you can also share them with your family, one size fit all●Upgrade Advanced Cooling Vest: Use the newest generation of evaporative PVA material, Super absorbent and evaporative making your body instantly cool down body temperature by 40°F. Physical automatic cooling, this cooling gear just re-soaks for about 1-2 minutes to increase the comfortable cooling effect for 4-6 hours!●Please Note: in order to ensure safe delivery, the cooling vest you received is wet, cooling, and soft, all our item are brand new, dont worry, when the water evaporates, it is normal if the vest becomes hard, you can soak in water and cooling again, it will become soft, thanks for your kindly understanding!●Lightweight But Durable and Reusable: Cooling PVA fabric keeps you cool as the water evaporates, reusable and durable! Believe me, this is the lightest evaporative cooling clothing youve tried. Washing your vest can be done by hand with mild detergent. Do not tumble dry the vest. Hang to dry in an open area. Ideal for MS, riding motorcycles, truck drivers, referees, etc, or those needing cooling relief!●No Need Electric or Ice Pack: Cooling the body only with the evaporation of water, not only economically realizing "power saving and preventing heat stroke", but also doesnt hinder the body when your construction work, cycling, or playing golf etc! It is more useful than any other ice vest! Great value if bought this cooling vest for your family or friend as a gift ^^●Reflective Strips Design: Our reflective cool vest is designed with reflective strips along the edges to provide you with 360-degree safety, especially when working or exercising at night. Wear our cold vest for night running, cycling, or any other outdoor activities to ensure your safety and visibilityDescription