ADULTS SIZE CHART
S
M
L
XL
a 18 19 20 20 3/4 inch
46 48 50.5 53 cm
b 26 27 28 29 inch
66 68.5 71 73.5 cm

KIDS SIZE CHART
Small
Medium
Large
Extra Large
to fit age 3-4 years 5-6 years 7-8 years 9-10 years