5% polyester (Generic)

Shatter Resistant Polycarbonate Lens

Large "D" door with mesh windows/side ventilation windows

Vibram TC5+ outsole provides exceptional traction for outdoor multi-sport activities

Fisher Aviator Hat Rings & Mounts 5% polyester (Generic)All our aviator hats have leather tops and tie straps. We use the Best Quality of leather and fur to ensure years of rugged good looks and comfort. Small 21 1 2" 21 7 8" Medium 22 1 4" 22 5 8" Large 23" 23 1 2" XL 23 7 8" 24 1 2" XXL 24 1 2" 25 7 8" Most accurate way to measure is to wrap a tape measure around the head, above the ears and meet in the middle of the forehead.