ASICS Men’s Gel-Kayano 27 Running Shoes start in the heel with added flex grooves that isolate the initial impact to force a soft and smooth feeling at foot strike. At mid stance, the foot should stop pronating and re-supinate for an efficient toe-off. These shoes also incorporate DYNAMIC DUOMAX technology to help support the foot and increase stability for runners whose feet roll inward too much (over pronate). The midsole integrates SPACE TRUSSTIC technology, which provides stability and reduces the overall weight to help promote a smoother transition from foot strike to toe-off. This added stability is complemented by deeper forefoot flex grooves that create a smoother roll through toe-off, allowing the shoe to move more naturally with the foot.