Zytron® from Kappler is a comprehensive family of fabrics that offers an easy-to-use numbering system and distinctly colored garments to provide a simple apparel matrix for identifying chemical protection levels. Zytron® fabric style numbers include Z100, Z200, Z300, Z400 and Z500 — the higher the number of the fabric, the higher the level of protection. Kappler Inc., www.kappler.com, (800) 600-4019