UNIQLO Worn 5-6 times Black Blocktech function: A windproof film is sandwiched between the outer and inner layers, effectively blocking the entry of cold wind. The entire inside is made of a soft fleece material, so you can stay warm and comfortable even on cold days. These are jogger pants with ribbed (elastic) cuffs, creating a neat and easy-to-move-in design. The waist is easy to adjust with elastic and a drawstring. Perfect for outdoor activities and sports, as well as everyday wear and one-mile wear in the dead of winter.