M2/W31 M3/W41 M4/W51 M5/W61 M6/W71 M7/W81 42 62 83 102 122 142 162 181 UK 1.52 UK 320 UK 3.56 UK 424 UK 4.57 UK 523 UK 5.56 UK 623 UK 6.55 UK 722 UK 7.57 UK 821 UK 8.54 UK 916 UK 9.54 UK 104 UK 10.53 UK 114 UK 11.51 UK 2.52 UK 21 28 inch1 30 inch8 1.5 infant1 2.5 infant1 3 infant1 3.5 infant1 4 infant1 4.5 infant1 5 infant1 5.5 infant2 6 infant1 6.5 infant1 7 infant1 7.5 infant1 8 infant1 8.5 infant1 9 infant1 9.5 infant1 10 child1 10.5 child1 11 child1 11.5 child2 12 child1 12.5 child2 13 child2 UK 12 One Size1 2XS2 XS13 S46 M45 L37 XL34 2XL21 3XL3 31 inch3 32 inch7 33 inch3 34 inch6 35 inch2 36 inch4 38 inch3 40 inch4