Size Guide

Our sizes are measured in US

Size	Hong Kong	UK/Aus	Korea	Germany	Japan	Inner diameter (mm)	Inner circumference (mm)
4	HK 9	H	9	47 (15.0)	7	15.2	47.7
4.5	HK 10	I	10	48 (15.3)	8	15.5	48.7
5	HK 11	J	11	49 (15.6)	9	15.9	49.9
5.5	HK 12	K	12	51 (16.2)	10	16.3	51.2
6	HK 13	L	13	52 (16.8)	11	16.6	52.1
6.5	HK 14	M	14	53 (16.9)	12	16.9	53.1
7	HK 15	N	15	54 (17.2)	13	17.3	54.3
7.5	HK 16	O	16	56 (17.8)	14	17.7	55.6
8	HK 18	Q	18	58 (18.5)	16	18.3	57.5
8.5	HK 19	R	19	60 (19.1)	17	18.7	58.7
9	HK 20	S	20	61 (19.4)	18	19	59.7
9.5	HK 21	T	21	62 (19.7)	19	19.3	60.6
10	HK 22	U	22	64 (20.4)	20	19.7	61.9
10.5	HK 23	V	23	65 (20.7)	21	20.1	63.1
11	HK 24	W	24	66 (21.0)	22	20.4	64.1
11.5	HK 25	X	25	68 (21.6)	23	20.8	65.3

 

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