size guide: On Running

Regular. True to size.

Size Guide - Mens Shoes

eu 40 40.5 41 42 42.5 43 44 44.5 45 46 47 47.5 48 49 50
br 37 38 39 N/A 40 41 N/A 42 N/A 43 44 45 46 N/A 47
jp 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 33
uk 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13.5 14.5
us 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 14 15

Size Guide - Womens Shoes

eu 36 36.5 37 37.5 38 38.5 39 40 40.5 41 42 42.5 43 44
br 33 34 N/A 35 36 37 N/A 38 39 N/A 40 41 42 43
jp 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 29
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