Strap was treated with a leather preservative when I first got it a few years ago as I felt it could crack. The leather is pliable but I would not recommend bending it sharply through 180 degrees. Installation on a helmet will not be an issue. Please note, this is not a reproduction. This item is in the category "Collectables\Militaria\1939 - 1945 (WWII)".
The seller is "helmutt" and is located in this country: AU. This item can be shipped worldwide.