These are 100% cotton striped pants purchased from ZARA. They have an elastic waistband and no lining. Size: 3-4 years old, 104cm. Inseam is 40cm, and the length from the waist is about 60cm. They have a relaxed feel and are cute for summer wear. The seam on the back has a slight yellowish tint if you look closely, please refer to the last image. I don't think it will be noticeable during normal wear.