The PROPPER CWU 27/P NOMEX® Flight Suit is built to military specification FNS/PD 96-17 (MIL-C-83141A) as worn by all U.S. flight crews. Flame-resistant, non-melting NOMEX fabric keeps you safe without weighing you down. Features a two-way zipper with pull, six primary pockets, adjustable waist belt with hook and loop closure, felled seams and a bi-swing back. All colors (excluding black) are NIR compliant.