Size Guide

Men's

USA EUR UK CM
7 40 6 25
7.5 40.5 6.5 25.5
8 41 7 26
8.5 42 7.5 26.5
9 42.5 8 27
9.5 43 8.5 27.5
10 44 9 28
10.5 44.5 9.5 28.5
11 45 10 29
11.5 46 10.5 29.5
12 47 11 30
12.5 47.5 11.5 30.5
13 48 12 31
14 49 13 32

Women's

USA EUR UK CM
5 35.5 3 22
5.5 36 3.5 22.5
6 36.5 4 23
6.5 37.5 4.5 23.5
7 38 5 24
7.5 38.5 5.5 24.5
8 39 6 25
8.5 40 6.5 25.5
9 40.5 7 26
9.5 41 7.5 26.5
10 42 8 27
10.5 42.5 8.5 27.5
11 43 9 28

Size Measuring Guide

A good fit for your ultra-marathon running shoes is important for comfort and performance. Follow these tips to measure your foot size at home.

General Tips

  • Measure your feet at the end of the day, when they're at their largest due to swelling.
  • If you're between sizes or one foot is bigger than the other, choose the larger size.
  • It's best to measure your feet every year, as your size can change over time.

What You'll Need

  • A piece of paper larger than your foot
  • A pen or pencil
  • A ruler or measuring tape
  • Socks of the thickness you'll wear with the shoes

Steps

  1. Stand on the paper in the socks you'll wear with the shoes.
  2. Use the pen or pencil to mark the end of your longest toe and the back of your heel. It's important to measure both feet, as their size can vary.
  3. Match your measurements to our size chart to find the best fit. If you're between sizes, we suggest choosing the larger size for better comfort.