She's one of the most well known socialites out there with an enviable wardrobe to boot. And Wednesday night was no different as 29-year-old hotel heiress Nicky Hilton stepped out for the evening. The businesswoman was attending a launch for a new brand of wine in Mexico City and ensured she stood out as much as the beverages on offer. Dressed for summer: Nicky Hilton wore a breezy mint dress for a night out in Mexico City Stepping out in the warm Mexican evening, the former model looked healthy and happy in her open front ensemble. She attended the event in a sleeveless mint coloured mini dress, with her long blonde hair kept loose and allowed to flow over her shoulders. More... A Hollywood lioness: Nicky Hilton shows off her ferocious side in jumper with wild lion emblazoned across the front Geometric glamour! Paris Hilton shows off her svelte figure in a clinging monochrome mini dress Battle of the BEE-auties! Emmy Rossum and Olivia Palermo look stunning in their black a