I have always fit a size 10 exactly (not a size higher or lower) and I felt that these shoes were only slightly small. Used with my Hyper X headphones w/ microphone, did the job. I wear a size 9 and really wanted to get a 8 1/2 due to the reviews saying the shoe was too big. Why did Chaco do this? I have huge feet and dont like advertising it. Minimal arch support. about having insanly short wide feet. Two of my four pairs have split, and the only thing keeping the other two going is the fact that I barely wear them. Very soft and comfortable dress! Another great olukai product. It also came with a little remote control which has its own battery included!