1 < crampon groove

2 < dual durometer

a = durometer usually lower

b = durometer usually higher

3 < undercut heel for braking and grip

4 < lugs spaced close for increased durability

5 < lugs on lateral side and heel are perpendicular on leading edge and sloped on trailing to enhance braking

6 < pyramid lugs for more aggressive traction

7 < domed ellipse in forefoot and heel area to reduce snow build up

8 < lugs on medial size forefoot perpendicular on trailing edge for better kick off

9 < dot indicates dual durometer

10< heavy stipple texture follows wear pattern of sole