Le Chameau Men's Sky Race Ot Trail Runner 3D mesh Vibram sole Designed for the needs of trail runners: stability, grip (Vibram Xrun Rubber), and flexibility for all terrains Twin-lace System which enables tightening of both the front and back of the shoe creating a perfect fit that holds in all types of terrain and is easy to adjust The Outdry membrane is a waterproof and breathable, micro-porous membran Tri-density EVA midsole with Stabiflex system that provides stability and extra flex creating a supportive and comfortable fit