I find Clarks to be the most comfortable shoes to wear, but something about these just didn't work for me.  I ordered up a half size as instructed on another (shoe) website, but they just didn't feel right on my feet.  And they felt hard on the bottoms.  I returned them. We had a walking vacation planned, and I was very concerned about these shoes and so wore an old pair of Easy Spirits which worked fine.  As for the colors, the OLIVE has just a hint of green so you don't really have to worry that you will be wearing green shoes.  I am sick of white athletic shoes and like the style and color of these.