Get a half size bigger than your usual shoes, just like they recommend. I've always worn trail style shoes and these are some of the best I've ever worn. Have not tested how water proof they are yet, but am sure they will do fine. The colors are way more generic than the pics show, good for me, maybe not so much for you. One month in and they are sweet, playing disk
golf they work well on all surfaces, dirt, grass, concrete, rocks, and a sweet toe bumper very useful. Hope they last as long as my Newport
sandals have.