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Firstgear Socks Size Chart

Heated Socks
Size Men's Shoe (U.S.) Women's Shoe (U.S.)
XS - 4 - 6
S 6 - 8 7 - 9
M 8 - 10 9 - 11
L 10 - 13 11 - 13
XL 13 - 15 -

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.