I could get up to about 55 mph if I was driving WITH the wind, but driving into any wind, or a crosswind? i couldnt get over 40/45 without common sense telling me to chill out. It is a combination of the soft leather that has just the right amount of give and the excellent soles. I have literally tried every single diaper brand ever made ?? but nothing can compare to Honest Co! ??????????????????????????????????????????????????????????????????????? The drawstring on this is literally under my boobs which is a terrible spot to be. I would expect to find this possibly in Pay-Less or some other knock-off store. Unplug and plug again, and the light was back to life. I found this out when I came home to find every roll unwrapped with tiny little teeth marks in them. The first thing I do in the morning is put them on, and I keep them on as long as Im in the house. Soft, the fit is true to size, the grey color is pretty.