There is a reason they called this shoe MayFly, you may actually fly when you wear them because they are so light. The Nike MayFly weights in at an unthinkable 4.8oz. Probably the lightest performance shoe ever made by Nike. They were introduced a couple of years ago and feedback has been extremely well that Nike kept remaking them, this time in the new FRESH MINT color that seems to be the NEW or the IN color for Nike this Spring. Look for this to hit stores soon.