Run the last mile in just as comfortable as the first with these gel kayano 23 running shoes in black onyx and carbon from asicsthese gel kayano 23 has all the normal high quality features that come with asics running shoes starting with the impact guidance system igs included in the heel this enhances the foots natural gait from when the heel first makes contact with the ground this is enhanced by the guidance lines which complement the gait efficiency asics fluidfit is included in t