UNIQLO kids' pants, made of polyester blend, size 150, comfortable to wear. - Brand: UNIQLO - Size: 150 - Material: 75% polyester, 23% cotton, 2% polyurethane - Waist: 59~65cm - Inseam: 145~155cm Thank you for looking. These pants are fleece-lined and very warm. I don't wear them often because I tend to get hot easily.