Article continues below advertisementThe Italian socialite and fashion maven turned heads in a tiny red and pink bikini while soaking up the sun on the white sands in South Beach. The red bandana sarong and toes dipped in the hot sands are enough to get everyone into the winter workout routine in anticipation of spring break, on beaches across the U.S. With her long, lean legs and toned physique, Lisa Kistermann looked effortlessly chic as she walked barefoot along the shoreline, giving off an understated, vacation-ready energy that felt equal parts glamorous and natural.