This is a denim jumper skirt from MUJI. Size 100, with a front pocket. It has two buttons, allowing for some length adjustment. It's made of stretchy denim. I don't think it's thin, so it might not be suitable for the hottest days of summer, but I think it can be worn in other seasons. There are no smokers or pets. I work full-time and am raising a child, so it may take some time to respond or ship. Thank you for your understanding.