Wore it for the first time for my workout. Had it on for about 1.5 hours. It's a good weight for what I'm using it for. I am not a runner so I can comment on how it would be on a run. It is slightly bigger in the back area so maybe it might flop around on a jog. Again that's just my guess because I'm not using for that. I am about 5'4" and about 150 and I am a size D. I was concerned about where that strap will sit but it sits above my chest ant the perfect height not uncomfortable around my breasts. The only complaint is that the elastic under the arms is a bit scratchy. Wearing a T shirt solved the problem. I might need to cut the sharp piece off next time.
The "cell phone" holder on the chest strap is either for a small flip phone from the 90s or for a small iPod. There is no way a phone of today will fit. lol I did however try to squeeze my iPhone 7 plus and I had to giggle at that.
Other than that the vest is great. Gave me a great work out and I can't wait to use it again.
One thing I am concerned about is not being able to wash it. There is no way to remove the shell and clean it. I'm not sure how that will hold up with several sweaty sessions.













