Vita-Flexweb Vita Flex Victory Team Rider Adrienne Lyle wins the U.S. Dressage Intermediate I National Championship riding Betsy Juliano’s 10-year-old Oldenberg mare Horizon at the 2017 Dutta Corp. U.S. Festival of Champions. (Photo courtesy of www.SocialCircuitEquine.com) elite equestrian lifestyle magazine #eliteequestrian Vita Flex Congratulates Victory Team Rider Adrienne Lyle on Winning Performances at The Dutta Corp. U.S. Dressage Festival of Champions