The belly knitting method uses a special elastic knitting method to accommodate a wide range of people, from those with large bellies just before childbirth. The yarn is 100% organic cotton certified by Fair Trade. We use natural rubber, but the rubber woven inside is covered with organic cotton to prevent the rubber from directly touching the skin. That's why the place that touches the skin is 100% organic cotton! It warms up your stomach with a rustling and fluffy feeling. It may seem long at first because it is not treated with chemicals, but after a few washes, it will shrink by about 5~7cm vertically. So that even pregnant women can use it in a shrunken size, In addition, the length is set to be suitable for slender people who are not pregnant women, so please feel free to use it. It does not contain any polyester and is made of natural rubber, so it will stretch if you wash it frequently. We recommend that you wash your laundry gently and only when you are concerned. It feels like you have cotton wrapped around your stomach, Please try it. < washing and drying> 　 Hand washing is recommended. When using the washing machine, put it in the net with a weak stream of water. *Very soft organic cotton yarn and natural rubber, so there is a risk that it will stretch if you wash it every day. We recommend washing in moderation except on days when you get dirty or sweaty. When drying, do not pull it, but shape it to dry. Size : One size fits all Actual size: Height approx. 45cm, width approx. 25cm