Mix of synthetic, mesh and webbing to provide a secure yet breathable and drain-able upper for all your water activities, OMNI-GRIP LT along with added rubber with micro-siping in high traction areas for superior traction OMNI-GRIP LT is our newest innovation to deliver incredible comfort to your outdoor adventure. OMNI-GRIP LT is a combination of step in comfort and reduced weight. Multiple drainage ports that flow from inside the shoe to the outside for superior drainage. Lace-Up Closure Outer Material: Canvas Slip Resistant Sole material: Rubber