Kt by Knix, a sister brand to intimates and apparel brand Knix specializing in teen period underwear and swimwear, is attempting to educate young girls on menstruation with a new children’s book called “Some Periods.”

In a release, the brand said that the book is designed to show young girls that there is “nothing shameful or ew” about periods.

The book comes as Florida contemplates a ban on discussion about menstruation in elementary grades through proposed legislation dubbed the “Don’t Say Period” bill. Meanwhile, a 2019 study for Plan Canada by Nanos found that just 10% of Canadian girls and women felt confident they knew what to do when they first got their period, with 20% saying they felt unprepared by what they learned in school.

In a release, Kt by Knix said that the book is designed to show young girls that there is “nothing shameful or ew” about periods.

‘”When we shy away from this, we send the message that periods are shameful or gross,” it said. “Kt by Knix intends to take the confusion, embarrassment and misinformation about periods and use this book to empower people to bleed with confidence.”

The book is illustrated by Sarah Rebar and written by Knix founder and president Joanna Griffiths, who said it’s a book she wished she had growing up. “[T]o the young menstruator in your life, I hope this book will show them that while some periods may be different, all periods are beautiful,” said Griffiths.

The book is selling for $13 on KtByKnix.com, with the first printing already sold out. Knix also marked the book’s launch with a $5,000 donation to I Support the Girls, which collects and distributes essential items such as bras, underwear and menstrual hygiene products to women experiencing homelessness and financial distress.