This is a baby warmer that can be attached. It cannot be attached to the skin. It must be separated by at least one layer of clothes. Generally, it takes twelve hours for the baby warmer to become hard and no longer warm. The baby's mission is completed

ぽかぽかfamily clothing type かタイプPuka Puka family clothing type (warm baby)

オアイリマーヤス company trademark オアイリマーヤス Co., Ltd.＊＊ ＊Company meaning

I was very curious about this thing when I first learned Japanese... Someone actually asked and asked: Well, this thing is a warm baby attached to clothes. For example, if the stomach is cold, just stick it on the belly of the vest. This one will start to heat up after a while, and lasts for a long time. It is used to keep warm. It cannot be placed directly on the stomach, as the pores will be injured