Gravity boots are among my favourite items in escapology for suspended challenges because they tend to do a good job of supporting your weight when you’re hoisted upside down to about indoor level or two floors high. Anything higher than that, and I’d strongly recommend you use something else to keep you from falling.
In any case, gravity boots are a very essential tool for escapologists who like suspending themselves upside-down, and an excellent item for exercises and endurance tests that the dedicated escapologist would have to be prepared to undergo. We’ve seen it used by Penn and Teller, Christian Bale in “Batman Begins”, and quite a few other famous people, and it was all the rage in the early 90’s as a fitness fad, the way running happens to be nowadays.
Gravity boots are relatively inexpensive, well-padded, and assure you that you won’t injure your legs when you suspend yourself upside-down. It’s also very cool-looking, and relatively inexpensive for what it does for you. If you’re more comfortable with this than the woven nylon loops, then by all means, go for the gravity boots instead.
Personally, I’m a fan of the item. It’s just unfortunate that they’re not too readily available locally and you’d need to order it online. Nonetheless, it’s a very worthwhile investment, and doubles both as part of an escapologist’s arsenal and as a fitness item.