I purchased this as a dance costume and wore it only once, after which it was stored away. The skirt's pleats are still intact, and there's no sign of wear. The size is listed as 140, but the blouse is form-fitting, so it would fit a child who usually wears a size 130 with some room, or a child of average build wearing a size 140 snugly. It's made of polyester with a moderate thickness, making it wrinkle-resistant. The skirt has an elastic waistband at the back and is approximately 40cm long. A matching tie is also included. This is a classic set, so it can be used for a wide range of occasions, from formal events and stylish outings to a spare uniform. The condition and size are based on my personal assessment. Please understand that this is a used item. Non-smoker, pet (dog) owner. I will use recycled materials for packaging, and it will be the minimum necessary to withstand normal weather and impact. Also, due to a disability, I have limited use of one hand, so I cannot provide the same level of neat packaging as a store. I will, of course, pack it with care, but please refrain from purchasing if you require neat packaging or excessive wrapping. Also, there is a possibility that the skirt's pleats may become slightly creased or wrinkled during packaging. I will try to avoid excessive compression to minimize this, but please understand.