The Fire Resistant Kool Max Zipper Vest with Nomex(TM) offers complete fire protection on hot and flammable job sites. The vest is made of Nomex(TM) fire resistant fabric, thread, and hook and loop tabs for complete protection. Water-based Kool Max Cooling Packs are non-flammable, reusable, non-toxic and provide constant cooling energy for up to 4 hours. Includes four (4) 6"x 14" segmented packs. Packs fit into insulated pockets inside the vest. The pockets have a comfortable all-cotton fabric to protect the skin and an insulated outer composite fabric to direct the cooling energy toward the body. Unisex vest with zipper-pull front. The vest is adjustable at the chest and waist with hook and loop tabs. Color: Blue. Sizes: M/L, L/XL, XXL.