Model #3520:  Juzo Dynamic Cotton Sock, Compression Socks for Men.  Per Manufacturer:  "Bigger foot portion; Cotton lining is breathable; Special ribbed design; Easy to slip on and off; Compression starts at the ankles and gradually decreases as it rises up the leg."  Please see size chart in photo #5.

Model #5800:  Juzo Cotton Support Socks.  Per Manufacturer:  "Juzo Cotton Support Socks provide mild graduated compression with the gentle next-to-skin comfort of natural cotton.  Knee-high ribbed design."  Please see size chart in photo #6.