Built with hand-laid premium, natural rubber over insulating neoprene for durability, flexibility and complete waterproof protection.ACTIVE FITWith a comfortable, secure fit to keep your foot in place while on the move, boots with Active Fit also go on and come off with ease.AIR-CIRC LINERQuick-drying mesh that circulates air inside the boot when you walk, keeping your feet cooler, drier and infinitely more comfortable.AQUA OUTSOLEOur Aqua outsole works like your favorite all season tire by shedding water and debris while maximizing surface contact for excellent tractionPULL ON WITH STRETCHPull tabs and a side stretch panel make these super easy to get on and off.