If they weren’t already, period undies have gone even more mainstream this week. Thinx, the OG reusable period underwear brand launched their more affordable collection, Thinx For All into 558 Walmart stores, and on Walmart.com, an expansion that according to Thinx CEO Maria Molland allows the brand to focus on “delivering nationwide accessibility to affordable and sustainable period products that are both better for the body and better for the planet.”

When I purchased my first pair of period underwear (which happened to be Thinx, btw) back in 2016, the concept was brand new to me. Paired with my newly adopted menstrual cup, it felt like I’d finally figured out how to manage my period–at the age of 34. (Better late than never, right?) The freedom and comfort felt like a revelation.

Related: The 18 best period panties to save your pants, sheets and peace of mind

At the time though, it felt like I was in a secret club of sorts. The only way to buy them was direct and at $30+ per pair, the initial cost definitely dented the wallet. The fact you can now scoop them up on a Walmart run for half that price is a fantastic advancement that’s long overdue.

What’s different about Thinx for All?

Does that mean they’re not as good as the original? Not a chance. According to Molland, “Thinx for All has the same technology that people trust in our premium assortment for years; the key difference is in the options.” Paired down to just a few styles (hi-waist, bikini and brief) colors (black, grey and rhubarb) and absorbencies (super and moderate), Thinx for All is obviously a much smaller collection, but not less than in anyway. Like the original line, moderate holds up to three regular tampons’ worth of blood, while super can absorb up to five. For the cost of just two boxes of tampons, you’ve got a pair of underwear that can do the job for up to two years.

What’s more, along with the launch, Thinx is working to make a real difference in local communities. Starting with Arkansas Women’s Outreach, they’ll join forces with organizations that are working to end period poverty and provide those in need with sustainable period products. In a country where 1 in 5 girls have missed school due to lack of menstrual products, filling that need has never been more urgent. (Yes. You read that right. Not to mention, 27 states still tax tampons as “luxuries”, and the disparity has only gotten worse during the pandemic.)

If you’ve been waiting to get on board the period undie train, take this as the perfect opportunity to make the switch. Trust me, you’ll wonder why it’s taken you so long.

Thinx for All Hi Wait Period Underwear

Thinx For All

$16.98

Hi-Waist Period Underwear

Thinx for All Bikini Period Underwear

Thinx For All

$16.98

Bikini Period Underwear