Check out the new TRX Duo Trainer, developed by TRX with renowned mobility expert and San Francisco Crossfit co-owner Kelly Starrett, DPT.     In this video, Kelly takes you through 3 tried-and-true movements: Dips, Planks and Roll Outs, demonstrating how the Duo Trainer helps build stability, increase shoulder mobility, and enhance upper body strength.  Get started with the Duo Trainer today!