I have the Levis biking jeans in black, and they are comfortable. I have been using them mainly for travel, lately since I fly frequently and they are very comfortable on long flights. They stretch slightly so they have give, unlike regular jeans. The actually feel fine on a bike.

I found them odd to wash at first. They had white smudges on them so I had to wash them a few times. I use a liquid detergent not powdered. It seems if they aren't rinsed completely you get the smudges, the other clothes don't show it. I think it is because the fabric is made to be slightly water and stain repellant. I have gotten it sorted out after washing them a few times and figuring out just how much detergent is too much.

The black Levis are very nice looking, they don't really look like jeans, they look more dressy than that.