Specter Gear Tactical Thigh Holster fits Glock 20 and 21 Series Handgun Fits Glock 20 and 21 series handguns Constructed from 4 layers of heavy duty ballistic nylon with a 2 layer 1000 denier cordura nylon outer shell Heavy duty 2 layer scuba webbing adjustable hanger strap Adjustable alloy thumb break snap with a hook and loop closure lockout strap Quick disconnect allows holster to be removed or attached to your belt without removing your belt