These are long pants, 100cm in length. The lining has short pile, but is made of a slightly warm material. Although they are labeled 100cm, they seem to run small. My child, who is exactly 100cm tall, has their ankles completely exposed when wearing them. I think the outer fabric is prone to pilling. The pilling isn't very noticeable due to the material, but it is present. These are used items, but thank you for your understanding.