Brand new Salomon S-Lab Sonic running shoes are designed to combine a great fit with a smooth ride. They are ideal for high-level runners seeking an up-tempo training and racing shoe. Take over the city running these lightweight, cushioned, and agile shoes.Upper: EndoFIT™ internal fit sleeve hugs the foot in exactly the right places and improves feedback and foot-wrapping. 3D Flex delivers an optimal combination of freedom of movement and a secure fit. Mesh offers breathable flexibility. Flat laces reduce irritation. Midsole: Profeel Film is placed to provide protection from the trail. EnergyCell+ provides long-lasting rebound. EnergyCell is a shock attenuating midsole material for soft landings. Die Cut EVA sockliner. Outsole: Non-marking ContaGrip provides optimal traction on a variety of surfaces.