I bought  these pants in a larger size earlier this year and can definitely say two things about them

1) buy a size larger than you normally wear unless you consider yourself fairly thin or of slight build.  The crotch and thigh areas are a bit snug.

2)  I consistently wash mine in cold/cold cycles and they haven't faded a bit and I wear them at least every week. My previous normal twill bdus faded ridiculously fast.

If I could I would wear them every day, they're just that comfortable.