Luftwaffe HBT Tropcial Trousers Czech Material Post War?

The trousers were discussed on the WAF see the link below. They are in very good condition with some light wear over all. The waist is about a size 38. All of the buttons are present. A good bear for display at a fraction of the cost of an original pair.

https://www.wehrmacht-awards.com/forums/forum/wehrmacht-uniforms-and-equipment/luftwaffe-flying-corps-uniforms-traditions-and-equipment/11855651-luft-hbt-para-trousers