Tyvek® 400 Coverall, Serged Seams, Collar, Elastic Waist, Open Wrists Ankles, Front Zipper, Storm Flap, White, Medium ORS NASCO longer life and safer use longer life and safer use Oversized ratchet with soft rubber grip allows for easy adjustment when wearing gloves Removable comfort cradle is a pivoting head pad that conforms to any head for the highest degree of comfort 3 position slider adjusts distance of the lens from your eyes for precise vision Crown strap adjustment allows the headgear to be raised or lowered for maximum comfort and performance Sweatband helps absorb perspiration and prevents sweat from interfering with vision 0 micron in size Protection built into the fabric itself nonwoven material Offers inherent barrier against particles down to 1