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Chaco Footwear Size Chart

Men's US 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 14 15
UK 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 13 14
EUR 40 40.5 41 41.5 42 42.5 43 43.5 44 44.5 45 45.5 46 47 48
JPN 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 32 33
 
Women's US 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 12
UK 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 10
EUR 36 36.5 37 37.5 38 38.5 39 39.5 40 40.5 41 41.5 42 43
JPN 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 29