It's a great product but I am not a big fan of carrying too much stuff when I exercise. You can certainly put a lot of items in it and as I tried, I was able to fit my iPhone 6 in it and zip it up. It is somewhat visible during nighttime. On the flip side, it is not very comfortable to carry stuff with you when you work-out. #exercisebelt http://www.amazon.com/dp/B0177ACI8W