Gabrielle Union, 51, shows off her toned figure in nude lingerie for new endorsement: 'Living unapologetically free'

Gabrielle Union has been named the newest Brand Ambassador for intimate and apparel brand Knix. Knix debuted this partnership with their new campaign and tagline Knix for Life on Wednesday. 'I'm proud to be working with a brand like Knix,' said the 51-year-old Bring It On actress who has also starred in the classic 1990s teen films She's All That and 10 Things I Hate About You.