I've worn Taos sandals for years and loved the comfort. They all have metatarsal support which makes for a sandal I can walk miles in. So I decided to try the shoes.  I noticed in the last couple of years that Taos has been running smaller. My old sandals are a 38 and still fit perfectly. I've had to order 39's in the new ones. So I ordered a 39 in the shoe. My toes (barefoot) were right up against the end of the shoe. So I ordered a 40 and with socks they fell off they were so big.  Since the leather is so soft and will stretch I decided to keep the 39.  I'm not sure I would walk miles in them, but for running around the house and doing errands they are very comfortable and don't make my feet hurt. The metatarsal support is doing it's job. So one star off for sizing. I like wearing them barefoot but would like the option of wearing socks on chilly days. I would buy again in different colors.