Reference: 393391 A precise and compliant running shoe, SONIC PRO 2 is our aspirational choice for the road. Technologies outsole Wet Traction Contagrip® Geometric decoupling midsole EnergyCell + VIBE RA PRO OPAL chassis 3D Profeel Film sockliner OrthoLite® upper construction Ortholite® Impressions upper material Breathable open mesh Fit management Sensifit™ 3D Flex Traditional Lace Benefits Smooth Transition The foot will transition effortlessly from touchdown to propulsion with the assistance of Salomon’s thought leading Geometric Decoupling. Lightweight Endurance Thanks to the thin, welded upper construction combined with the hi-rebound Energy Cell+ cushioning, the Sonic will ensure ultimate performance mile after mile. Performance fit The proprietary Sensifit upper construction provides a glove-like fit. The benefit? No energy is ever wasted, it all goes to propelling you forward.