Dearfoams Papa Bear Plaid Clog Men's Slipper

What size is a medium-small? I didn’t see that on the size chart.

How wide are the extra large

do they run small or big? my husband is 10.5 so i don’t know if medium or large is better

If my son wears a 10EE shoe, will the medium be wide enough, or do I need to go large to compensate for width?