The american optical aviators are not included. The item "GENTEX HELICOPTER PILOTS HELMET AIRCREW FLIGHT LID SPH-4" is in sale since Wednesday, October 27, 2021. This item is in the category "Collectibles\Militaria\Surplus\Hats & Helmets". The seller is "chmclau_84" and is located in Amboy, Illinois. This item can be shipped worldwide.