The Gel-Kayano 33 is Asics' flagship stability trainer — one of the most trusted names in running footwear, now in its most refined form yet. The new FLUIDSUPPORT system is a meaningful evolution of the 4D Guidance System, delivering a smoother, more adaptive stability experience while retaining the GEL cushioning that keeps overpronators comfortable and aligned through every mile. Whether you're building a marathon base or logging consistent daily miles, the Kayano 33 gives you the support and cushioning to train without compromise.