Warm winter boots with built-in infrared heat-retaining material. Uses LITHERMO® (Light Thermo) high-performance heat-retaining material! ●Unisex● ●New Color● Black ●Product Features● Comfortable to wear ・The opening uses Velcro, making it easy to widen and take on and off. Special features ・Workman's original durable water-repellent "SplaTECH" is used for the upper! ・Resistant to mud and dirt. Size S: 23.5-24.0 cm The product has been inspected and opened from the plastic bag. How about preparing before the snowfall? Color: Black