content: This was a really good investment. I use it during some of my aerobic exercise dvds and I walk/jog/run with it on. The only negative is that you can't wear it on the outside of your clothing, because it looks like a bulletproof vest and then there are a lot of eyes staring at you. So, I decided to wear it under my clothing, it is a little bulky but it isn't so bad. I highly recommend it for someone who is new to to the vest. It is economical and it will serve the purpose of helping toGoFit 10-Pound Walking Vest with Removable Water Bottle Holdershed those pounds.