Winter-lined bootie in 6 sizes, XXS - XL Cordura 500 sock with fleece lining. Durable, suitable for both winter and dryland. Size chart: XXS: Circumference 110 mm Length 80 mm S: C: 130 mm, L: 120 mm M: C: 150 mm, L: 130 mm L: C: 160 mm, L: 135 mm XL: C: 180 mm, L: 150 mm