Outer shell DuPont® Cordura 500D (100% polyamide) Lining COOLMAX® breathable mesh inner lining (100% polyester) Membrane removable GORE-TEX® 3-layer liner technology can be used attached inside or over the pants Fit/features 4 external pockets air-vent zippers magnetic closure pockets double as air vents stretch panels at knees NOMEX® (100% nylon) heat resistant fabric on inner calves to protect from exaust heat PITTARDS® leather anti-slip seat patch double leg adjustment Zips & velcro at ankles high waisted with adjustable velcro flaps button fixtures for optional braces (Art. 3057) Protection exclusive EN 1621-1 Held cloverleaf SAS-TEC knee protectors optional hip protectors pocket for optional coccyx protector 3M SCOTCHLITE™reflectors Connecting zip