FOOTWEAR SIZING BY BRAND
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Thorlo Sock Sizing Chart

Sport Socks
Sock SizeMen's Shoe SizeWomen's Shoe Size
9USA-4-6
EURO-35-36.5
UK-2.5-4.5
11USA5.5-8.56.5-10
EURO38-4237-42
UK4.5-7.55-8.5
13USA9-12.510.5-13
EURO42.5-46.542.5-45
UK8-11.59-11.5
15USA13-15-
EURO47-49-
UK12-14-

Snow Socks
Sock SizeMen's Shoe SizeWomen's Shoe Size
9USA-4-6
EURO-35-36.5
UK-2.5-4.5
11USA5.5-8.56.5-10
EURO38-4237-42
UK4.5-7.55-8.5
13USA9-12.510.5-13
EURO42.5-46.542.5-45
UK8-11.59-11.5
15USA13-15-
EURO47-49-
UK12-14-

SKI and SNB Socks
Sock SizeMen's Shoe SizeWomen's Shoe Size
9USA-5-6.5
EURO-35-37
UK-2.5-4
10USA6-87-9
EURO38.5-4037.5-40
UK5.5-6.55.5-6.5
11USA8.5-109.5-11.5
EURO42-43.540.5-43
UK8-9.57-9
12USA10.5-11.5-
EURO44-45.5-
UK10-11-
14USA12-14-
EURO46-49-
UK11.5-13.5-

Outdoor Socks
Sock SizeMen's Shoe SizeWomen's Shoe Size
9USA-4-6
EURO-35-36.5
UK-2.5-4.5
11USA5.5-8.56.5-10
EURO38-4237-42
UK4.5-7.55-8.5
13USA9-12.510.5-13
EURO42.5-46.542.5-45
UK8-11.59-11.5
15USA13-15-
EURO47-49-
UK12-14-

Kids Socks
Sock SizeBoy's Shoe SizeGirl's Shoe Size
7USA10-1310-13
EURO27-3027-30
UK9-129-12
9USA13.5-413.5-4
EURO30.5-3630.5-36
UK12.5-312.5-3