Montrail Mountain Masochist III Shoe - Men's mesh Imported Upper: Mesh construction with webbing overlays for enhanced fit and support Midsole: FluidFoam MIDSOLE for exceptional cushioning, flexibility and support Patented FluidGuide technology for enhanced mid-foot stability and a smooth ride on the trail Outsole: Full length Gryptonite OUTSOLE combined with full length trailShield for ultimate underfoot traction and protection