I own an older version of this shoe in hot coral and got these new ones in black/rose for replacement.  I also got the magnet/hot coral color to try.  I own the whisper style as well.

Size/fit:  Beware the black/rose color fits 1/2 size smaller than the magnet/hot coral color. Also, the insole for the black/rose is a harder rubber while the magnet/hot coral insole is cushy rubber.  The black/rose looks very stylish and would look good with a casual city outfit as well as out adventuring.  The magnet coral looks much sportier. I have skinny feet with high arch and these can be cinched tight all around your feet but can also stretch to accommodate wider feet.

Sole: these are the most protective keens, which cups your feet all around with rubber edges so you don't have to worry about scrapping the side of your feet on rocks.  The arch on these shoes are also the highest compared to other models.  The rubber bumper in front is also the most robust and covers the entire front of your feet/toes.  For serious adventuring, l love these shoes.  The tread is sticky even on wet rocks.  There are 4 thick straps on top that protects my feet without leaving too much open space (best protraction).  When I walk in rivers where my feet might get stuck between unseen rocks, these shoes protect my feet very well.

The whisper is a much slimmer and more leisure walking sandals, which I use for casual everyday use.

Im returning the black/rose size 9 for a 9.5; but going to keep the magnet/hot coral in size 9.  Your choice on whether you prefer a stiffer sole or a cushier sole.  I didn't get the other colors, so not sure how those might fit. If you do primewardrobe, you can get several colors and sizes to try for no charge for 7 days (I think) and return the ones you don't want.