I use to wear croc style shoes but they were so light on my feet that sometimes I wouldn't pick my feet up high enough and I would stumble! Comfy but i would look like a fool sometimes! I use to wear nikes but b/c of the bodily fluids we come into contact with they had to be leather uppers. The last 2 yrs though I have switched to Danskos and they are pretty comfy. They come in tons of different styles and colors. I have the maryjane ones. But remember when you first start wearing them ease into them , they take a while to break in. Bring a different pair of shoes to work and switch em!