Too many people on here not confident enough in their own sexuality to wear the most practical of kit!
i bought a pair of Meindl buck skin trousers in the Alps 10 years ago and have worn them out stalking, pigeon shooting etc ever since. They are silent, comfortable and totally thorn proof.
More recently, I picked up a pair of buffalo hide plus 4s in France and shot in them this season on grouse moors, grand estates and scruffy syndicates. They are warm when cold, cool when hot, toughest material I have ever come across and just need a sponge down no matter how filthy they get.
End of of season I wipe them down with Renapur Leather Balsam and put them away. Dress them with it once or twice a year and they will be fine.