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. Tested and approved - fabric meets ASTM F1506 performance requirements (ATPV rating of 7.1 cal/cm2); classified to NFPA 70E (CAT1). Cooling packs sold separately and feature: 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. Ergodyne Orange Modacrylic/Cotton Blend/Polyester Cooling Vest | 12205