I have narrow feet and this specifically-women's-fitted croc is perfect. I am a size 8 in shoes but 7.5 in heels because of my narrow feet. The size 8 fit perfectly with a tad bit of room for my toes and socks. The nobbed footbeds prevent slipping so that extra bit of room is great. If I wear thicker socks the crocs fit fairly snug which is fine for around the house but might get stuffy in all-day wear. There are no vents so feet can get a little toasty with socks.
The arch support is fantastic and the bottom, non-slip tread is great!! Both features are much better than my Specialst vented clogs I wear for work. Both are very easy to clean.

The only con is vents on the sides to let the feet breathe, otherwise this croc is perfect.