ARC FLASH CAT 2 Wear when working around hot, flammable or high voltage machines and equipment. Recommended for welding, vehicle manufacturing and mechanical repairs. Comfortable, 100% flame-resistant cotton. 2-way zipper. 6 outside, 2 reach-through pockets. Machine washable.ULINE offers over 42,000 boxes, plastic poly bags, mailing tubes, warehouse supplies and bubble wrap for your storage, packaging, or shipping supplies.