ALTRA SIZE CHART

Men's Shoe Sizing
Women's Shoe Sizing

Note: All measurements are in inches unless otherwise noted

Men's Shoe Sizing

US
Shoe Size		 8 8½ 9 9½ 10 10½ 11 11½ 12 12½ 13 14 15 16
UK 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 13 14 15
EUR 41 42 42.5 43 44 44.5 45 46 46.5 47 48 49 50 51.5
CM 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 32 33 34

Women's Shoe Sizing

US
Shoe Size		 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 13
UK 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 11
EUR 36 37 37.5 38 38.5 39 40 40.5 41 42 42.5 43 44 44.5 46
CM 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29.5

General Sizing Tips for Altra Shoes

  • Please allow at least ½ inch between your longest toe and the end of the shoe.

  • Your Zero Drop™ Footwear should feel as relaxed and natural as possible.

  • If the fit is correct, it may feel "too loose" around your toes and may take a day or two for your feet to get used to spreading out.

  • Fitting this way will allow your feet to become more STABLE, more COMFORTABLE, and more POWERFUL.