Our shoes run on the small side. If you want a relaxed fit go a full size up, the elastic collar will still keep your shoes secured to the ankle.
INSIDERS have a fabric upper that is soft and flexible. Each of our sizes fit two full US standard sizes.
If your size is: 6.5 order size M, 8.5 order size L, 10.5 order size XL. And if you normally buy wide shoes go for a full size up as well.