Ovation Women's Mudster Mid-Calf Barn Boot Leather Grippy herringbone tread pattern on outsole. Comfortable and flexible. Entire boot is 100% waterproof. Easy to put on and take off. Mudster Boots feature rubber uppers and neoprene shells that are also self-insulating. Toasty insulation keeps you warm all day. Pull-on boot style. Made of neoprene shaft with piping on collar.