I usually wear a sz 7 but ordered 71/2 and they fit perfectly. I usually don't like sandals that have a toe loop, but as soon as I put these on, it didn't bother me at all. They are lined with suede. They do have good arch support, which is a must have for me, when walking all day. I like the adjustable arch strap because my arches are very high and I have a very difficult time breaking in "stationary" straps, or they end sitting in my closet. At first I thought that they were a bit slippery on my feet, but after adjusting the arch, tightening it a little, the problem was resolved. Love the Navy blue color and pattern too!