A preemie outfit, a pre-all. It is a free size of 50-60 cm which can be worn as a 10-minute length from birth to around 3 months when the baby becomes more active, and as a 7-minute length. Unlike newborn clothing such as baby dresses and two-way overalls (dress-type and coverall-type), this outfit is a type where the legs are separated from the beginning. The material is "tuck jersey", a sheer and cool material suitable for spring and summer.