Size Guide


 Size  Inside Diameter in mm (Approx)


UK Size
(Approx)


US Size
(Approx)

XS 16 - 16.5 J - K 5
S 16.5 - 17 L - M 6
M 17.5 - 18 N - O 7
L 18 - 18.5 P - Q 8