I've been using it for a week, and the navy polka dot one shows some wear, but it's still wearable. When I, who am 164cm tall with an average build (and a larger bottom), wore it, it felt a bit small. I think it would be a good fit for someone around 160cm tall. It's a type that opens at the chest for breastfeeding. The waist is also elastic and adjustable. Pajamas Separate Top and bottom set Hospitalization Childbirth Sleeve Length...Long sleeve Season...Spring Season...Spring, Autumn