Find out how they stacked up after the break.
The first thing I noticed upon pulling them out of the box was their weight — they're the lightest Kayano shoe yet, and noticeably lighter than any of the Asics I've owned — each shoe is 12.3 ounces. The shoe's weight is mostly in its heel thanks to the cushioning material sporting two different densities in the heel and forefoot; the front of the shoe is less dense, making for a more cushioned stride. Additionally, off-center laces are anatomically designed to fit your foot and reduce irritation. And, as an eco-friendly bonus, the overlays are made from recycled synthetic material. Plus. . . I really like how they look! (I am not one for pink running shoes.)
I wore these shoes both outdoors in the park and indoors on the treadmill. The 17s were slightly narrower than my previous pairs, and I loved the feel! The first time I ran in them, the insides of my feet were slightly irritated by the shoe's eyelet stay (the part that holds the laces), but by the second and third runs, the irritation was gone and they felt comfortable and great. (I guess even my favorite pair of shoes isn't immune to the need for a quick break-in.)
Overall, Asics fans, you will love these shoes! They're lighter, and feature increased comfort and a better fit, but still feel like the Asics you've grown to love. More of a visual person? Here is the old Gel Kayano 14 side by side with the new Gel Kayano 17, for a little compare and contrast.