A convenient item that can be used as a swaddle or as a sleeper. As a swaddling that can fully wrap your hands and feet when newborn. The snap button makes it easy to put on and take off, so you dont have to worry about it coming off when you put it You can use it as a sleeper until around 3 years old by removing the snap button on the foot. The material is made of 6 layers of gauze with excellent breathability and absorbency, and is fluffy with air. Champignon means mushroom in French. The colorful mushroom motif has a cute plaid pattern on the lining, so it can be used by both boys and girls.