This is my second pair and I've ordered a third pair to have on hand. The profile lasts forever and has good grip. I've walked in them on cement, concrete, grass all my life and the tread doesn't wear out like many shoes I've tried. I even play basketball in them and haven't noticed any difference between them and my basketball shoes. With my first pair, the tread fell off the shoe at some point, but I rode countless miles in it.