Bests & Worsts Reviews from Amazon

Absolutely brutal. I'm male, 48 years old, 5' 7" and 165. Fit and long time lifter. I bought the 40lb version to get more mileage out of calisthenics type work. I use it for burpees, pushups, squats, kettlebell swings, jumping, and general walking around. Tried it for the heavy bag but it I was just slow. Pistol squats are impossible (I can do 20 in a row without the vest). Material is super tough and don't see it wearing out. I have a long torso so the fit is ok, but I can see if you're short with a short torso then squats might be hard because the vest will hit your thighs. The waist belts are adjustable so you make as snug as you can and still breathe. Be prepared for a break in period on your traps. Pain in my shoulders was the limiting factor in how long I could wear the thing for the first 3 weeks. Stick with it and you get used to it. Drawbacks - you sweat like a pig under the vest and you look like a terrorist - otherwise great piece of equipment.