Sugoi Sock Sizes
Sock Size	US Men's Shoe Size	US Women's Shoe Size
XS	n/a	5.5-7
S	5.5-7.5	7.5-9
M	8-10.5	9.5-10.5
L	11-13	11+

Sock Geek Says:

Perfect sock for the tri-athlete, excellent for both the bike and run.

Highlights include:

•  Compression support, lightweight second skin type of fit.
 
•  Strategically placed cushioning under the toes, metatarsal pad, heel and achilles.

•  Reverse Lin-toe construction eliminates toe abrasion.

•  Anatomically correct Left/Right foot construction makes the sock feel like a natural extension of your foot.

•  The fit only improves with a structured arch support that wraps the mid-foot.

•  Reinforced material in the heel and toe increases the durablity of this high performance sock.

Sugoi RS Quarter Sock Specs

Sock Fibers:

92% - Nylon
8% - Spandex