Webbing toe post The Merrell Mens Kahuna Web Sandals are a great design that have updated performance features. The sandals have webbed and mesh adjustable uppers with a rubber outsole. The webbing and mesh upper is made from recycled materials. The sandals also have a Merrell Air Cushion in the heel that absorbs shock and adds stability. The sandals have an EVA midsole and footbed for stability and comfort. The outsole is made by Vibram and provides traction in all weather and temperature conditions.