This is a cotton collared dress from NEXT. The lining is also 100% cotton. The material is similar to a shirt, so it has no stretch. Size: 3-4 YEARS (See NEXT size chart: Height: 104cm / Waist: 54cm) Flat measurements: Total length: Approximately 55cm Width: Approximately 29cm *Please check the images for the measurement points. I bought this as a summer outfit and wore it 3-4 times during one season. It's in very good condition. Because it has a collar, it looks neat and I think it can be used for slightly more formal outings. I was having my daughters wear matching outfits, so I am also selling the 9-12 month 80cm size. If you purchase the set, I will discount the total amount by 500 yen, so please let me know in the comments section.