Immediate and long-lasting cooling relief - packs maintain constant 64 degrees F (18 degrees C) for up to 4 hours. Quick recharge - packs recharge in a little as 10 minutes. Honeycomb design - patented honeycomb ice pack design eliminates stiffness. Flame resistant- vest made with modacrylic cotton blend FR fabric. Flexible fit - adjustable hook and loop closures on both shoulders and waist. More cooling power - extended vest surface area enhances cooling power. Reflective accents - designed for more visibility on busy streets or job sites. Convenient storage - two elastic pen loops on chest. Available in 2 sizes: S/M and L/XL. Ergodyne Orange Modacrylic Cotton Blend Cooling Vest | 12220
