CrossFlowX™: Flex Express. 37 minutes. While normal flexibility classes far exceed the 90-minute mark, this CFX version will warm you up with HIITs and Kriyas, and get your body feeling safe to open, in all of the places you want and need. Grab anything that is typically helpful for you in flexibility poses, and get ready to OPEN! Don't forget: flexibility starts and ends in your MIND. Believe you can, and you WILL!