If you want me to coach you personally to jump higher click here: If you want a FREE week of jump training click here: My name is Isaiah Rivera and I have the highest officially tested vertical on the ...
My name is Isaiah Rivera and I have the highest officially tested vertical on the planet at 50.5 inches and am the co-founder ...
Which jump trainer is best? The only day worse than leg day is the day after leg day. A jump trainer is a great way to switch up your lower-body workouts to isolate specific leg muscles, which can ...