The flexible grooves in the sole allow for smooth transitions between strides, asics shoe width b or d.

Department Name: Adult
Athletic Shoe Type: Running Shoes
Release Date: Spring2018
Insole Material: PU
Closure Type: Slip-On
For Distance: Half Marathon(>20km)
Applicable Place: Outdoor Lawn
Function: Cushioning
Gender: Men
Brand Name: Nike
Model Number: AH3397-003
Feature: Breathable,Height Increasing
Upper Material: Synthetic
Upper Height: Low
Sports Type: ADIPRENE/TORSION/FORMOTION
Technology: Air Sole
Shoe Width: Medium(B,M)
Level Of Practice: Beginner
Fit: Fits true to size, take your normal size
Outsole Material: Rubber

D width collars feature padded contours that match typical ankle circumference, asics unisex gel-nunobiki sportstyle shoes.