Sewn to Military Specifications FNS/PD 96-17 (MIL-C-83141A) As Worn by All U.S. Flight Crews 95% Nomex / 5% Kevlar Fabric, Thread and Zipper Two-Way Zipper with Thong Six Pockets Knife Pocket on Left Inseam Map Pocket on Left Sleeve Adjustable Waist Belt with Velcro® Fastener Gusseted Back for Freedom of Movement Made in USA Details: Sewn to Military Specifications FNS/PD 96-17 (MIL-C-83141A) As Worn by All U.S. Flight Crews 92% Meta Aramid, 5% Para Aramid, 3% Conductive Fibers Two-Way Zipper with Pull Six Primary Pockets Adjustble Waist Belt with Velcro Knife Pocket on Left Inseam Pencil Pocket on Left Sleeve Gusseted Back Flame Resistant