Vitalsox Size Chart
Sock Size	US Men's Shoe Size	US Women's Shoe Size
S	5.5-7.5	6.5-8.5
M	8-10	9-11
L	10.5-14	11.5-13.5

Sock Geek Says:

Performance graduated compression that can be used for training or racing.  Light weight sock made of patented anti-bacterial Drystat fabric. Maximum impact absorption AB-X foot bed with a thin mesh stripe which runs from the middle of the top of your foot to the bottom of the cuff on both sides of the socks to give you optimum support and ventilation.

The moderate compression is gradual, with the highest (18mmHg) from the the mid-foot to the top of the ankle (12mmHg), stimulating blood flow, increasing circulation, alleviating swelling, and contributing to a boost in performance and well-being.

Vitalsox Compression Sock Specs

Sock Fibers:

70% - Drystat®
10% - Spandex
10% - Lycra
10% - Nylon

Made in Italy