Rachel Comey Mars Mules in Orange. - size 5.5 (also in ) Rachel Comey Mars Mules in Orange. - size 5.5 (also in ) Suede upper with rubber sole. Slip-on styling. Heel measures approx 3 H. RCOR-WZ10. 37 120. Former Theory designer Rachel Comey hit the fashion jackpot when Bowie wore one of her shirts during an appearance on The Late Show with David Letterman. Now, several collections and a womenswear line later, Comey?s label has grown far beyond hunky-dory.