Sandal sizing is the same as insole sizing. If you typically size up your shoes to manage a foot width issue, you should not size up your sandals. See size chart here.
We recommend trying the sandal on in the house with socks first in case you would like to make an exchange or return.
Place your foot in the sandal where it feels most comfortable at the arch.
You may have some space behind your heel, this is normal.
Tighten down the straps to your personal comfort level.
Enjoy lasting comfort and relief!
For Cascade Sandals with Suede Straps:You may notice the suede straps stretch a bit in the first week of consistent wear. This is to be expected and will stop after the first several wears.