Calvin Klein Collection is another option that can be had for cheap if you look around. www.yoox.com comes to mind - there are a couple of different fits, so you may need to order a few, but those are very slim. If you can find Ralph Lauren Black Label on sale, you could give those a shot too.
Other potentials: http://www.wolfvsgoat.com/
Brooks Brothers Black Fleece http://www.brooksbrothers.com/black-fleece/black-fleece,default,sc.html