I made these pants from a bolt of kimono fabric. The material isn't specified, but it's likely cotton. The fabric is a bit thin, but the color and pattern seem to prevent transparency. For the coming seasons, you could wear something underneath, making them wearable all year round. They have an elastic waistband with a buttonhole in the back, and a D-ring belt in the front, allowing for a wide range of sizes. There's a part of the back of the pants, around the waist, where the cut has been sewn closed with machine embroidery. Please be aware of this before purchasing.