Bought this for a backpacking trip in the Sipsey Wilderness in northern Alabama one week before Thanksgiving 2009. It held up nicely for what I needed and I am very pleased with it for what I paid.

The stitching seems sound and the quality of the material is just fine. There is a lot of stretching room horizontally (fat/thin), but very little stretching available vertically (tall/short). I would say that the only bad thing about this product is that since there is very little vertical stretching, the waistline in the rear slides down when I bend over  -- it typically returns when I stand upright, but it is mildly unnerving to feel your pants/underwear ride down so much when you bend over. I buy pants in a 33" waist with a 32" inseam, and a medium fit me just fine.  I would say that the medium would easily fit a 34" waist (maybe even 35"), given the high amount of horizontal stretching.  It is labeled "Mid Weight" but I would say that the material is mid-to-light in weight.

Overall, I am very pleased with the purchase, and I would certainly recommend it to others.