The upper on adidas adiZero Tempo 8 Boost running shoes creates a better fit and provides superior midfoot support. You can expect to experience a much more efficient gait with enhanced stability and smoother transitions. You'll love the incredibly light fit, cushion and flexibility.Upper: Flat laces reduce irritation. Omori micro-fit standards provide optimal fit and feel. STABLEFRAME is a completely new approach to stability, working with the boost™ foam to adapt to your running style, providing a personalized experience. Coolever mesh lining allows for superior moisture and heat exchange between the foot and the outside air. Midsole: boost™ midsole provides unmatched energy return and superior cushioning. Full-length EVA STABLEFRAME innovation is designed to guide and support the foot from heel to toe. Forked TORSION® SYSTEM guides the foot's rotation from touchdown through midfoot stance, providing a stable and smooth transition.Outsole: Continental Rubber on forefoot outsole delivers 21% more traction in dry conditions and 23% more traction in wet conditions. ADIWEAR™ heel outsole provides superior grip and durability while maintaining light weight.