Castelli
Men's Small Medium Large X-Large XX-Large
Chest 33-36 37-39 40-42 43-46 47-50
Waist 26-28 29-31 32-36 37-39 40-42

Women's Small Medium Large X-Large XX-Large
Equivalent dress size 2-4 4-6 8-10 10-12 12-14

Socks Small/Medium Large/X-Large
Men's shoe size 6 -10 10-14
Measurements stated in inches unless otherwise indicated.

I won't all line up how it should. Here's the link.