The Propper CWU 27/P Nomex Flight Suit is designed to keep you safe without weighing you down. Built to military specification FNS/PD 96-17 (MIL-C-83141A) and worn by all U.S. flight crews, this suit is made with flame-resistant, non-melting Nomex fabric. It features a two-way zipper with pull, six primary pockets, an adjustable waist belt with hook and loop closure, felled seams and a bi-swing back. Every color except Black is NIR compliant for optimal safety.