This is a formal set consisting of a white shirt and navy pants. I bought it last year to attend my eldest child's Shichi-Go-San (a traditional Japanese festival for children). The material is 100% cotton, so it's gentle on the skin. Also, it can be worn without being overly formal, so I think it can be used in a wide range of situations. As you can see in the photos, there are wrinkles because I washed and stored it simply, but I think it can be worn beautifully if you have it professionally cleaned at home. Thank you for looking.