This vest is designed from material made specifically for body cooling. This construction is to help counter the harmful effects of heat stress. This vest lowers body temperature and can be re-cooled in minutes which offers hours of cooling without compromising mobility. The fit of this vest is designed to clear your waist, providing ease when sitting or standing. Features Keeps wearer cool for up to 8 hours Wicking, cooling and drying capabilities Cooling mesh fabric for increased breathability Reflective tape for increased visibility Lightweight and comfortable Pen pocket 3 pockets for ample storage Shell Fabric : 100% Polyester, Tricot 120g Lining Fabric : 100% Polyester Mesh 60g Filling Fabric : Bamboo Yarn with PVA Padding 330g