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Reef Size Chart

Men's

US	UK	EUR	JAPAN (cm)
4	3	35	22
5	4	36	23
6	5	37.5	24
7	6	39	25
7.5	6.5	39.5	25.5
8	7	40	26
8.5	7.5	41	26.5
9	8	42	27
9.5	8.5	42.5	27.5
10	9	43	28
10.5	9.5	43.5	28.5
11	10	44	29
11.5	10.5	44.5	29.5
12	11	45	30
13	12	46	31
14	13	47	32
15	14	48	33
16	15	49	34
17	16	50	35

Women's

US	UK	EUR	JAPAN (cm)
4	2	34	21
5	3	35	22
6	4	36	23
6.5	4.5	37	23.5
7	5	37.5	24
7.5	5.5	38	24.5
8	6	38.5	25
8.5	6.5	39	25.5
9	7	40	26
9.5	7.5	40.5	26.5
10	8	41	27
11	9	42.5	28

Youth - Approximate Age: 9 Months to 5 Years

US Sizes	UK	EUR	JAPAN (cm)
3/4	2/3	19/20	11
5/6	4/5	21/22	12.5
7/8	6/7	23/24	14.5
9/10	8/9	25/26	16

Youth - Approximate Age: 6 to 11 Years

US Sizes	UK	EUR	JAPAN (cm)
11/12	10/11	28/29	18
13/1	12/13	31/32	20
2/3	1/2	33/34	22
4/5	3/4	35/36	24
6/7	5/6	37/38	26