Salomon introduces lightweight running shoes designed for committed runners who like speed. With specific technologies focused on appropriate fit and ride for shorter duration, faster paced running. Having developed countless innovations for fit, grip and ride in trail running. Slalomon designers and engineers turned their sights on creating a training shoe more dedicated to everyday runners who focus on speed and comport for short distances. The result is lightweight shoes that look as fast as they run. But performance requires more than just being lightweight and this is where Salomon know how sets the Sonic apart from other lightweight trainers. To ensure a fluid ride with no dead spots, Salomon incorporates EnergyCell and EnergryCell+ dual density midsole for shock absorption and a super light 3D Profeel Film to assist heel-toe transition. Finally, to provide the precise fit that is synonymous with Salomon and ensure the heel and midfoot stay comfortably in place, the Sonic range introduces the famous Sensifit, Quicklace and Endofit technologies. Key Technology: Sensifit - Stability & ComfortWrapping to the foot with a precise and secure fit, Sensifit™ cradles the foot from the midsole to the lace system, providing a stable, precise, snug fit all around the system. Moulded into the shoe, reducing weight and brings more comfort. EndoFit - Security & PrecisionA Salomon exclusive technology comprising of an internal fit sleeve designed to hug the forefoot and improve feedback and foot wrapping.