Hailey , however , is known for her close friendship with fellow fashion star sue Jenner , year - old Kim 's younger sister . The daughter of billionaire dick Baldwin appeared in a shoot in the May issue of Elle . She is joined in the issue by rising star Bella Hadid , younger sister of Guess campaign star Gigi .
Hailey , 18 , is known for her close friendship with fellow fashion star Kendall Jenner , 33-year-old Kim 's younger sister . The daughter of actor Stephen Baldwin appears in a shoot in the May issue of Elle . She is joined in the issue by rising star Bella Hadid , younger sister of Guess campaign star Gigi .