is there such a thing as a lightweight, comfortable safety toe shoe? It doesn't need to be a heavy duty boot and it doesn't need to be steel toe(composite/alloy is ok). I sometimes have to walk as much as 12 miles in a day for work and my company has decided we should be wearing safety toe footwear everywhere we go. I bought a pair of "lightweight" keen boots on amazon but they were heavy and didn't fit right so I sent them back. I had some Cat steel toes before and they were heavy and uncomfortable. Any suggestions?