The AERO STRETCH WARM SLACKS from Japanese outdoor wear manufacturer WORKMAN are very popular. They sell out in the internet shop in a matter of seconds after they come in. They are lined with brushed, warm, water-repellent, stretchy material and are priced as low as 1,900 yen. If you try to buy pants with similar features from an outdoor brand, you’ll pay four to ten times as much. Workman’s low prices and high functionality have helped it do well in the Corona disaster.