This is an organic cotton belly band. It stretches, so it seems it can also be used by pregnant women. It's a product from a shop called Maruei Knit. (Made in Japan with reliable in-house production) It hasn't been opened, so it's unconfirmed, but often there are no tags etc. on the product. Although it's unused, it has been stored at home. Please be aware of this. *Instant purchase is welcome.