Youth Footwear
USA SIZE 1 2 3 4 5 6 7
UK Size 13 1 2 3 4 5 6
Europe Size 32 33 34 35 37 38 39
Foot Measurement in CMs 20 20.5 21.5 22 23 24 25
Kids' Footwear
USA SIZE 8 9 10 11 12 13
UK Size 7 8 9 10 11 12
Europe Size 25 26 27 28 29 31
Foot Measurement in CMs 14 15 16 17 18 19
Toddler Footwear
USA SIZE 4 5 6 7
UK Size 3 4 5 6
Europe Size 21 22 23 24
Foot Measurement in CMs 11 12 12.5 13

NOTE: If you are still unsure about what size Sorel you should order, check out this neato Footwear Fit Guide thing they made for you. You can download and print the PDF, and then follow the step-by-step instructions to determine your ideal size. So fun.