Take the aggressive tread of the SPEEDCROSS, apply it to the low, light, and fast S-LAB SENSE concept, and you've got an athlete requested, ultra-distance trail running weapon for soft ground. Natural running: Natural motion frees the foot to move, with a reduced heel drop for an even foot strike. S-Lab construction reduces weight to make the S-Lab Sense the lightest, lowest racing shoe in Salomon's range. Low heel drop to promote midfoot striking and better agility. Endofit: An internal fit sleeve designed to hug the forefoot and improve feedback and foot wrapping. Dynamic traction: Patented traction system that allows for maximum surface and traction on dry surfaces and the performance of larger alternative lugs in the mud.