Long pants, size 150. Thick corduroy (cotton) material, so it's warm. 95% cotton 5% polyurethane The width is just right, not too slim nor too wide, making it warm and preventing cold air from entering even in winter. These thick long pants are convenient to have during the winter, such as for outdoor play or going to and from school. There is no fleece lining, but the 95% cotton fabric prevents static electricity, so it's safe. Although the stretch isn't significant, the pants aren't slim-fitting, so they seem easy to move in. I wore them for one season in a snowy region during autumn and winter, and then they became too small. There is some wear and tear, such as slight fading of the black color overall, but I think they are still in good condition and can be used. The knees don't seem to have much wear. Please check the condition carefully in the photos. I will also be listing similar cotton long pants and full-fledged cold-weather pants that I used during the same period, so please take a look at my profile page if you'd like. Shipping via Mercari courier service. Thank you.