I bought this at a ZARA store a few years ago. The fabric is a smooth, nylon-like material, like patent leather. These pants are incredibly eye-catching and cute. I think they'd look very stylish paired with a black outer garment. Regarding the size, it's XL, so I think they'd fit well for people over 170cm tall and weighing over 75kg. Please refrain from purchasing if you are sensitive to the fact that it has been some years since I bought it.