Original TRX Pro 4 The TRX Pro 4 system includes our most versatile Suspension Trainer and the TRX app, designed to let you fully personalize your workout. It has adjustable and padded foot cradles, upgraded webbing, and custom antimicrobial-treated textured rubber handles. Includes three types of anchoring solutions and a free one-year subscription to the TRX app. We are the official TRX distributor in Singapore. All of our TRX Suspension Trainers are authentic and original.