Size Guide - Happy Socks

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EUR UK M UK W JPN
38-40 4-7 3.5-6.5 21-24.5
41-48 7.5-11.5 7-11 25-29
US Sock Size US M US W
9-11 4.5-7.5 5.5-9.5
10-13 8-12 10-12.5

Kids Socks

Sock Size (Age)EUR Shoe SizeUK Shoe SizeUS Sock SizeUS Shoe Size
0-12 M13-210-4.53-5.50.5-5.5
12-24M22-245.5-76-6.56-8
2-3 Y24-267-8.56.5-7.58-9.5
4-6Y28-3110-12.57.5-811-13.5
7-9Y33-351-2.58.5-9.51.5-3.5