Kourtney Kardashian was spotted enjoying a day of tennis with friends in Los Angeles wearing an Adidas Originals Knitted Romper ($100.00), Roberi & Fraud Frances Oval-Frame Acetate Sunglasses ($250.00), her Tiffany & Co. Cross Pendant in 18k Gold With Diamonds ($2,700.00) and Adidas Ultraboost Running Shoes ($180.00).