Kathy Jacobs is proving that age is just a number. The 56-year-old mom and model just landed a spot in the coveted Sports Illustrated swimsuit issue. "THANK YOU SPORTS ILLUSTRATED SWIM SEARCH I am beyond grateful that you and everyone involved with this amazing search exists on this planet to showcase ALL TYPES OF BEAUTY!!!!!! The Sports Illustrated Swimsuit issue is out on July 21st!!!!," she shared on Instagram.