Entertainment Sports Lindsey Vonn Takes It All Off For New Book Trailer Lindsey Vonn's new book Strong Is the New Beautiful will be released on October 4 By Rose Minutaglio Published on September 29, 2016 03:50 PM Share Tweet Pin Email Lindsey Vonn bares all in a trailer for her new book Strong Is the New Beautiful. The clip, released exclusively to PEOPLE, shows the 31-year-old Olympic gold medal skier posing without clothes while holding ski poles to promote her fitness motivation guidebook. The athlete – a four time World Cup champ – also flaunts her enviable back muscles and abs in the video. Vonn – who chose the tagline “Embrace your natural beauty, eat clean, and harness your power” for the book – divulges her own exercise routines and diet regimen. “ Strong Is the New Beautiful is filled with all of the expert information and guidance you need to make the right choices,” she says. “It is the perfect companion for living life to the fullest.” Strong Is the New Beautiful will be released on October 4.