Sizing - Socks

Socks
All measurements are approximate
Size Length Height Approx Shoe Size Range (US) Colour Code
XSmall 5.5" / 14cm 7.75" / 20cm Toddler 6 - 10 None
Small 6.25" / 16cm 8.5" / 22cm Toddler 9 - Kids 13 Brown
Medium 7.75" / 20cm 9.5" / 24cm Kids 13 - Kids 6 Dark Green
Large 8.5" / 22cm 9.5" / 24cm Kids 3 - Men's 8 Light Green
Adult S/M 9.75" / 25cm 9.5" / 24cm Men's 7 - 12 Red
Adult L/XL 10.5" / 27cm 9.5" / 24cm Men's 10 - 15 Blue

Notes:
Length & Height are of the socks unstretched.
Length is measured from toe to heel. Height is from heel up. 

If you are close to the end of a range, and have a wide foot, go up a size. 

Colour Coding can be found at top of toe. And may not be noticeable unless you stretch it a bit.