Enjoy excellent comfort & advanced support with the GEL-KAYANO 27 running shoe. The redesigned mesh upper helps keep feet cool, while the sole is more flexible to help promote a more natural roll through the gait cycle. This starts in the heel with added flex grooves that assist in isolating initial impact to force a softer & smoother feeling at footstrike. New running shoe in box. I am running in this shoe now. Not only does it look great but it also feels great. Bigger toe box than 23,24,25.