I debated for a long time about ordering these shoes on line, but after reading all the other reviews, I finally took a leap of faith.  I was worried about what size would work for me.  I usually wear a 7.5 or an 8, depending on the shoe - but lately 8's have been too big.  I decided to get a size 7, since no half sizes are available, and I had concerns about wear the arch would hit my foot.  I love love love these shoes!  They are so light & comfortable - and they fit perfectly!  They are just as comfortable as flip flops but with more arch support; and since they are fluffy inside, I don't have to wear socks to keep my feet warm in the cold weather. Great shoe for a great price.