I am on the lookout for some heavy knit ponte leggings to wear this fall/ winter. Similar to these minus the price tag and the ugly zipper on the back:

http://www.jcrew.com/womens_ca...../31090.jsp

I would like to wear these as pants (with a somewhat longer top/ jacket) so they have to be really thick. Any recommendations? (preferably under 30 dollars- that may be asking alot!)