I've owned one for a while, although I don't wear it as much as I should - but they are really beneficial to use. I find that a weighted vest is especially helpful for the ones that don't rely on lifting heavy weights, and also for the ones who exercise via a variety of training methods.
For example, I bought this type of vest to mainly use while I'm working out on my Power Tower. I only purchased a 10lb weight vest, but it was still enough to make my pull-ups and dips more challenging. This type of physical fitness gear is really great for the ones who workout without weights and depend on their body weight for the sole resistance of the performed movements at hand. ...See, with the addition of a weighted vest, you no longer have to worry about leveling out or "peaking" in strength, since you can always buy a heavier vest if the exercise becomes too easy. Speaking of that, when you get to the point where pull-ups using additional weight becomes too easy, you have room to brag. Ha!
Pull-ups, push-ups, and dips on a Power Tower is not all a weighted vest is good for. There are so many uses for these. Some people use them while running, walking or performing daily tasks. They would also be very effective to use during martial arts training or when you are punching on your heavy bag. All of those prior activities while wearing these vests, will help strengthen your torso, abs, back, legs, etc. - due to the added weight.
Below, I'll provide an image of a typical weighted vest. Most of these they make now, have the option to add or remove the individual weight bars as you see fit. They come in a variety of sizes & weights. I've seen them weigh 10, 20, 30, 40, 60, and even up to 80lbs. Dang, I couldn't imagine running around, training or working out with an extra 80lbs. on my back! But, it depends on your physical fitness needs and what type of exercises you'll be using it for - when it comes to picking out the right one. For starters, I'd recommend buying a 10 to 20lb. weight vest.
If you're interested in browsing through a fine selection of weighted vests, either click the image below or follow the link under it:
--------------------> 'Click Here' for additional Weighted Vest selections! <--------------------
Side Note: Upon browsing through the various selections, you may also be interested in ankle weights, wrist weights, weighted gloves, and so on.
---End of Post "Use a Weighted Vest for Training"