For the their Spring/Summer 2009 line, UNDRCRWN has collaborated with Mos Def for a collection directed by Dustin Canalin. The Mos Def inspiration is drawn from his personal style as well as the album Revolutionary But Gangsta by Dead Prez seen with the use of colors and bandanna pattern. The set will be released Wednesday March 18th, 2009 at UNDRCRWN retailers and their online store. View more images after the jump. via Hypebeast.