Paradigm 6 (M)

Altra running

 

The first Altra shoe inspired by and developed with an Altra athlete. Meet the Paradigm 6, a shoe that is blurring the line between support shoe and everyday trainer. Altra Elite Athlete and two-time Olympian Kara Goucher’s input helped us take this shoe to the next level, adding an Altra EGO™ MAX midsole and slimming down the overall design while maintaining its key support features.

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Altra running

 

The first Altra shoe inspired by and developed with an Altra athlete. Meet the Paradigm 6, a shoe that is blurring the line between support shoe and everyday trainer. Altra Elite Athlete and two-time Olympian Kara Goucher’s input helped us take this shoe to the next level, adding an Altra EGO™ MAX midsole and slimming down the overall design while maintaining its key support features.

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🏃️ Altra Running Shoes Size & Fit Guide

📏 Sizing Overview

Altra shoes are designed to fit true to size for most runners. However, due to their unique design features—such as the FootShape™ toe box and Balanced Cushioning™ platform—some users may experience a different fit compared to other brands. It's essential to measure your feet accurately and consult the size chart below. 

📐 Size Conversion Chart

Men's Sizes:

US Size

UK Size

EU Size

Foot Length (cm)

7

6

40

25.0

7.5

6.5

40.5

25.5

8

7

41

26.0

8.5

7.5

42

26.5

9

8

42.5

27.0

9.5

8.5

43

27.5

10

9

44

28.0

10.5

9.5

44.5

28.5

11

10

45

29.0

11.5

10.5

46

29.5

12

11

46.5

30.0

13

12

48

31.0

Women's Sizes:

US Size

UK Size

EU Size

Foot Length (cm)

5.5

3.5

36

22.0

6

4

37

22.5

6.5

4.5

37.5

23.0

7

5

38

23.5

7.5

5.5

38.5

24.0

8

6

39

24.5

8.5

6.5

40

25.0

9

7

40.5

25.5

9.5

7.5

41

26.0

10

8

42

26.5

10.5

8.5

42.5

27.0

11

9

43

27.5

*Note: If you're between sizes, it's generally recommended to size up for a more comfortable fit, especially for long-distance running or hiking.

👣 Fit Characteristics

  • FootShape™ Toe Box: Altra's signature design allows your toes to relax and spread out naturally, providing enhanced stability and comfort.
  • Balanced Cushioning™ Platform: This zero-drop platform places your heel and forefoot at the same distance from the ground, promoting proper, low-impact form throughout your run. 
  • Fit Categories:
    • Original Fit: The roomiest toe box, ideal for those who prefer maximum space.
    • Standard Fit: A balance between comfort and performance.
    • Slim Fit: A snugger fit for those who prefer a more performance-oriented feel.

📝 Measuring Your Feet

To ensure the best fit:

  1. Place a piece of paper on a flat surface against a wall.
  2. Stand on the paper with your heel against the wall.
  3. Mark the longest part of your foot on the paper.
  4. Measure the distance from the wall to the mark.
  5. Repeat for the other foot and use the larger measurement.
  6. Add 0.5 cm to your measurement to account for foot expansion during activity.
  7. Refer to the size chart above to find your corresponding size

💡 Fit Tips

  • Toe Room: Aim for about a thumb's width of space between your longest toe and the end of the shoe. 
  • Sock Thickness: Consider the thickness of socks you plan to wear; thicker socks may require a slightly larger size.
  • Time of Day: Feet can swell throughout the day, so measure your feet in the evening for the most accurate sizing.
  • Break-In Period: Allow time for your feet to adjust to Altra's unique design, especially if transitioning from traditional running shoes.