All-in-One Suspension Trainer Bundle - Seasoned Gym Enthusiast, Includes Training Club Access, XMount Anchor, 4 Exercise Bands - AliExpress
A great add on to your TRX training, the isometrics in this book are fantastic, this is what I used before i knew about suspension training, can pick up a decent cop
TRX® Suspension Training | Suspension Weight Training
Complete Guide to TRX® Suspension Training® 2nd Edition Online CE Course With Print Book – Human Kinetics
TRX® Suspension Training | Suspension Weight Training