Danner patented EXO Platform. Protective PU fused to light and breathable polyfiber upper. Minimal structural elements through upper provides sok like fit. Midsole channels provide increased flexibility underfoot breathability and drainable comfort. Perforated open cell PU footbed. Molded siping in outsole allows for greater grip on wet surfaces. DWR-treated upper material. 29 oz. Boot height: Approx. 3'' tall.