Christina Haack is swinging into summer with the most stylish bikini and she gave fans a sneak peek at her new swimwear with a clip from her tropical getaway.The Christina on the Coast host showcased her trim physique when she shared a video on the deck of an oceanside villa on Instagram.MORE: Christina Anstead and daughter look so alike in new photo In the clip, the mum-of-three looked carefree as she swung on a swing wearing a white two-piece. WATCH: Christina looked carefree during her