Winter Thickened Warmth-Preserving Mens Wool Silk Blend Fleece-Lined Pants Home Comfortable Mid-Waist Long Trousers

The main materials are polyester and spandex. The stitching and seams are neat and well-done. It's a snug fit. Looking at the cut, it's best worn as inner leggings. The thickness is average, so it's not like fleece pants. If you wear another pair of leggings underneath, it might feel tight, and for northern winters, you might still need to wear woolen or fleece pants on top.