Propper's CWU 27/P 4.5 Oz Flight Suit is built to military specification FNS/PD 96-17 (MIL-C-83141A) as worn by all U.S. flight crews. This means it is dependable in any situation and built to last while you take to the skies. This CWU 27/P Nomex flight suit is constructed of 92% Meta Aramid, 5% Para Aramid and 3% conductive fiber fabrics, which makes this garment flame-resistant. Features a two-way zipper with pull, six primary pockets, adjustable waist belt with Velcro, knife pocket on the left inseam, pencil pocket on the left sleeve and a gusseted back. Versatile as it is safe, count on this flight suit for superior performance in flame resistance, thermal protection, durability and comfort. It’s strength lies in the fibers itself, so you know your flight suit is durable down to its core, and you can count on its protective capabilities to never be washed out or worn away.