DuPont™ Tyvek ® 400 Coveralls Provides an effective barrier for dry, small particles, even after abrasion, with an ideal balance of protection, durability and comfort. Flashspun high-density polyethylene substrate provides comfortable, inherent barrier protection against hazardous dry particles and light non-hazardous liquid splash. Proprietary comfort-fit design offers greater range of movement and increased worker comfort. Features serged seams and nylon zipper. White.