Today Saucony began dropping a little information about the upcoming Kinvara 4, which is set to lunch on May 1, 2013. It is obvious from the pics that there are going to be some changes to the Flexfilm overlays, which were introduced in the Kinvara 3. Otherwise it appears as though the only other significant change is to the heel insert. Per Saucony:
For the Kinvara 4, we upgraded the heel insert to our PowerGrid material, which helps to improve the cushioning level of this shoe. We’ve also adjusted the FlexFilm overlays from the Kinvara 3 to the 4. By exposing more mesh in the forefoot, we improved breathability while still maintaining great lockdown, and conversely we added more FlexFilm in the midfoot and heel area to really help frame and secure the foot through all phases of your gait.
No word yet on the weight, but the outsole appears largely unchanged from the Kinvara 3. On a purely aesthetic note, the change to the Flexfilm overlays will not allow for the dramatic designs we see today in the Kinvara 3.
What do you think?