Is it this one? http://www.urbanoutfitters.com/urban...SEARCH+RESULTS
There may be more than one way of doing this (probably is, as that's usually the case), but this looks like something you could make using hairpin lace (which is crochet).
You may also be able to create this look by knitting, too, but I don't know how to do it. I'm sure others will chime in!