"I love this pair of Merrell Terran Weave II Sport sandals. The colors are great, I have the navy and teal. They are super comfortable. I usually wear a 7.5, but that size was not an option so I got the size 7 and they fit perfectly. So they may run sightly long? I have fairly narrow feet, and they are just slightly wide... but not much. I would definitely recommend these sandals to anyone. Merrell has a way to form the sandal/shoe to fit the curve of your feet perfectly. I haven't worn this for an extremely long period, it has usually been for shorter periods. So, I'm not sure how they are over a longer period of time, and especially with regards to arch support."