SIZE CHART

If you're buying Altra for the first time, please check your feet length. Add 0.5 cm to ensure you get the right amount of space and convert on the chart below.
For more details see our How to mesure instruction.

Heel to toe length (CM) 20.5 21 21.5 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5
EU 34.5 35 35.5 36 37 37.5 38 38.5 39 40 40.5 41 42 42.5 43 44 44.5
UK 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10
US 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12