The TRX® Suspension Trainer® Whatever your sport, wherever you train, whenever you’re ready… TRX. The TRX® Suspension Trainer® is designed to build power, balance, strength and flexibility for people of all ages and at all fitness levels. Fitness Anywhere offers a total-body training tool, supported by cutting-edge workout programs, that has changed the way serious athletes, fitness professionals, and the US military exercise, train and perform. Whatever your objectives, the TRX team is committed to helping you get stronger, train better, and reach your fitness goals.