These shoes are good for exercise, gym, or general purpose use. While not specifically labeled as a running shoe, they will also work for this.The shoe essentially a structured mesh upper on top of a light rubber-like sole. I took a photo of me compressing the top so you can see just how squishy it is. This makes it very comfortable and breathable. This is the "deep navy" color, and it's definitely a deep navy!The sizing is good; the model usually wears a size 9, and these fit perfectly. There's also a sort of "bumper" that runs around the inside of the heel at the top of the shoe. This helps to grip the shoe in place and keep it from moving around.The soles are VERY grippy! No traction problems with these! The inside contour is good and supports the foot pretty well, but again these are general purpose and not specifically marathon shoes. Country of manufacture is Vietnam.They are lightweight, at 257 grams or just over 9 ounces each. Construction quality seems good and solid.They seem to a be good value for what they are: a very comfortable pair of light, general use/exercise shoes.