For fast, agile, and responsive runs the Saucony Swerve is the shoe for you. This lightweight, neutral shoe gives runners a natural feel similar to that of the Kinvara with added underfoot cushion, without added weight.A breathable, seamless upper gently holds the foot in place without constriction. Enjoy all of the benefits of a plush neutral running shoe with a lightness to keep you moving fast and feeling free.Upper: No-sew FLEXFILM™ lightweight yet strong material allows for fewer layers in the upper for a seamless, flexible feel. RUNDRY Lining combines superior moisture wicking properties with a plush feel for comfort. Engineered mesh provides a glove-like fit and feel. Padded tongue and heel collar enhance comfort. Flat laces reduce irritation.Midsole: Heel to toe cushioning provided by the POWERGRID midsole. Outsole: TRI-FLEX provides increased force dispersion over a greater surface area while also delivering optimal flexibility and traction. iBR+™ is 33% lighter and provides more cushioning compared to standard blown rubber. XT-900™ premium carbon rubber outsole material offers exceptional traction and high-wear properties.