Love these! I wore the Challenger 7 and had heard that these were slightly plusher under foot so gave them a go since I needed a new pair of trail shoes anyway. Got to say, I wasn't taken by the color, but they are actually not too bad. What makes up for there lack of "cool colors" is they are so comfy to run in! I kind of felt like Tigger from Winny the Pooh, bouncing down the trail!