Mens Medium Sizes: 6 1/2 to 13 (whole and half sizes), 13, 14, 15, 16, 17 Mens Wide Sizes: 6 1/2 to 13 (whole and half sizes), 13, 14, 15, 16, 17 Ladies Medium Sizes: 5 to 12 (whole and half sizes) Ladies Wide Sizes: 5 to 12 (whole and half sizes) Unique flexible protected split-sole, Napa upper, curved heel, Padded collar with achilles comfort notch, Tricot lined with foam cell base, Non-slip sole with strategic traction points