2XU Compression Sock Sizes
Sock Size	Calf Girth Inches	Men's Shoe Size	Women's Shoe Size
XS	13-14	4-6.5	5.5-8
S	14.5-15.5	6-8.5	7.5-10
M	16-17	8-10.5	9.5-12
L	17.5-18	10-12.5	11-14

Sock Geek Says:

Note:  Size your race socks primarily by measuring the circumference of your calf at its widest point. Fine tune your fit by cross referencing that with your shoe size. If you don't know your calf size then order by your shoe size.

The 2XU white Race Sock is a sport styled sock ideal for competition and training wear to stabilize muscles for less fatigue and tissue damage. With graduated compression engineering, the Race Sock also promotes increased circulation to flush by-products more efficiently and minimize blood pooling in the lower extremities. Left/Right anatomical fit for enhanced performance. This popular sock also channels air, wicks moisture and boasts a linked toe cage to enhance comfort during use. Perfect for endurance events.

•  Performance + Comfort
•  Fast Recovery
•  Improved Circulation
•  Reduced Fatigue
•  Reduced Muscle Damage
•  Heightened Agility

2XU Compression Race Sock Specs

Sock Fibers:

85% - Polyester
15% - Elastane