Hi Jocelyn. Ok, I know that I’m cheating here but I have to say TWO are my favorites because of their flexibility in use, and their ability to be easily transported: resistance tubes (with all of their accessories/attachments) and medicine balls.
I hope this helps.
I have to agree with Philip on his choice!
The TRX is compact, (everything fits neatly into a small tote bag) makes it ideal to take into situations where traditional exercise equipment would be impossible to bring. It’s ideal for those clients either living in small apartments, or who have limited floor space in their homes
The TRX is so versatile and can be used to hit any body part to develop core strength, balance, cardiovascular conditioning, and flexibility.