These are Columbia nylon pants. My husband wore them when fishing, but they quickly became the wrong size, so I put them away. They are relatively clean, but please check the images. The knees and seat are made of a sturdy, contrasting fabric. The hems have elastic, and the waist is fully elastic, making them easy to wear. Total length 106cm, rise 37cm, inseam 76cm, waist 35-50cm.