Kristin Cavallari may have just had a baby boy, but her sheer stripe BCBGMAXAZRIA top ($85), red leather Veda skirt, and beige ankle-strap Zara platforms showed off her fit figure while running errands in Hollywood. In true SoCal manner, Kristin completed her look with a no-fuss ponytail, gold hoop earrings, and her engagement ring. Black leather skirts are abundant in Hollywood, but oxblood is quickly becoming the It color for Fall, which is why we particularly love Kristin's choice. Pair a dark red leather skirt with everything from a printed button-down blouse for the office to this colorful Madewell cardigan ($92) for a cozy date night.