I bought a pair of the Stealth Gear trousers, they are very good. The only concern was their sizing, I bought Large as that is what I normally have. I had to return them and get XXL which fitted perfectly. The big advantage of these is they are water proof and you can kneel down without getting wet. I usually use Paramo or Rab for hill walking and they are good for that but not so good for photography. These trousers seem to be just the thing for clambering about in the bogs and mud.
These are not the sort of trouser to wear down town or shopping, out on the hills and in the forests they are as good as it gets.
I also bought the jacket/vest at the same time, same material with loads of useful pockets, I have yet to use it in anger but I think I may be able to leave the bag behind on many occasions as the pockets seem to hold an enormous amount of equipment and they have padding too. It is heavy though, not that I noticed it when wearing it.
I hope this helps,
Paul.