A 360 degree Form Fit locks improves the overall fit compared to the previous ISO Fit edition.
Expect the same classic mild to moderate support that the Guide has provided for years.
New PWRRUN cushioning provides just-right softness that's responsive enough to tackle as many miles as you wish.
The new medial TPU guidance fram quickley and quietly guides each foot through its natual gait cycle for the smoothest feel yet.
FORMFIT surrounds the foot with a made-for-me feel that can accomodate a wide range of foot shapes comfortably.