Rachel Zoe pushed her son, Skyler Berman, in his stylish Missoni stroller yesterday in LA as she shopped for sunglasses with friends. Rachel has been taking her little one along for many of her retail excursions in recent months while she gears up for the fourth season debut of her reality series. The Bravo show was initially set to return to TV in August, but The Rachel Zoe Project premiere date has been pushed back to Sept. 6. This season picks up during Rachel's pregnancy and her search for a new assistant to replace Brad Goreski. Despite the small-screen delay, it still promises to be a fashionable Summer for Rachel, with her new Rachel Zoe Collection now available for preorder exclusively at Neiman Marcus.