Salomon Men's XR Crossmax Neutral CS Running Shoe 100% Mesh Rubber sole Perfect fit comes from Salomon's Sensiflex, soft reinforcement on the ball of the foot, and the Sensifit system to wrap around the upper instep precisely A new chevron pattern Contagrip outsole ensures precise grip on virtually any surface An Oversized Tendon midsole component provides a smooth cushioned ride with energy return for long runs The neutral version has a 3 piece midsole with a symmetrical shape, and fully welded sensifit upper Sensifit - Actively cradles the foot to ensure a secure and precise fit for maximum stability.