I am pretty pleased with these. I got them to work in around the house. They are flexible in the groin and durable. There are TWO SETS of buttons on the side flaps; pretty hard to find. I would recommend buying them a little bigger than what you are used to, especially if you have a beer gut (they fit well, but I cant button the top button). I wear 42" jeans, and got these in 44; so if you are a bigger guy, get them at least 4" bigger than what you normally wear.

Most importantly, these things are frickin comfortable, even more so than my favorite pair of jeans. Very fat-friendly.