Tyvek® garments are composed of flash spun high-density polyethylene which creates a unique, non-woven material that provides an ideal balance of protection, durability and comfort. Tyvek® fabric offers an inherent barrier against particles (down to 1.0 micron in size). Protection is built into the fabric itself; there are no films or laminates to abrade or wear away. Tyvek® fabric's durability advantage over micro-porous film fabrics delivers consistently better barrier, even after wear and abrasion.