Review on Waterfly Fanny Pack for Women and Men - Water Resistant Waist Pouch with Multiple Pockets for Running, Travel, Hiking, Walking - Lightweight Crossbody Chest Bag Fits All Phone Sizes by Dustin Gabrielle

I somewhat disagree with this product. It satisfies my needs (a small, unobtrusive case for my phone and keys while I run), but it has issues. First, it's nowhere near waterproof or durable. I often pull out my phone after a run and find it drenched in sweat. One would think that the manufacturer should make the outdoor product more sweat and water resistant, but no effort has been made. Finally, the band around the waist is not elastic and does not stretch. There are two problems with tightening the strap: either the pack is too loose and will bounce, or it is too tight and restricts your breathing. Bad design decision. Overall: a decent backpack for the money, but I advise you to get a waterproof one with an elastic waistband.