Our primer on comfortable and also leak-proof protection that’s both ecologically sustainable and also financially smart.

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It’s called “free-bleeding,” and even more women are doing it: Instead of managing period liquid through a menstrual cup, pad, or tampon, they’re grabbing duration underwear particularly designed to be worn as a one-and-done solution to menstrual flow (or testing the waters through period panties designed to act as extra protection versus leaks).

“Underwear only?” You could be reasoning. You bet — and also we’ll show you why.

Looking to navigate the various brands, products, and also need-to-recognize details for making the transition to period panties? We’ve obtained you extended.

What precisely is duration underwear?

Period underwear are underapparel intfinished for you to wear during your period to take the location of disposable protection assets like tampons or pads — although some woguys choose to depend on duration underwear just during lighter circulation days, making use of them as backup during heavier circulation days. Constructed to look and also feel like continuous underwear (i.e. not bulky), duration panties are made with added layers and special fabrics in the crotch area to absorb menstrual blood. Wash them, re-wear them, and also wash them aacquire — these are a reusable alternative all cycle long.


How period panties work

Period underwear consist of an absorbent material that holds one to two tampons’ worth of flow, a moisture barrier to save you comfortable, and a layer designed to prevent any leaks or staining. Still doubtful to make the switch and entrust your flow totally to underwear? Many type of individuals initially begin through lighter flow days or using their period underwear as backup security before graduating to full-time use.“A good way to give period underwear a shot is to wear it overnight in the direction of the finish of your period as soon as your flow is lighter,” says Meika Hollender, co-founder and president of Sustain, which uses duration underwear made from 95% third-party certified organic cotton and 5% spandex, through a lining of polyurethane laminate topped through organic cotton. “In addition, trying it out as a earlier up on a heavier day is great too!”


Why make the switch to duration underwear?

Beyond the comfort aspect and leak-proofing, period panties are also gaining popularity as both an ecologically sustainable and economically smart choice. Try them if you’re searching for a solution much less irritating than tampons, even more comfortable than sanitary pads, and also less messy than using a menstrual cup. And through duration panties, you’re always ready: No more frantic late-night tampon runs to the corner keep.

Looking for a real testimonial from someone that made the switch? Read this steustatiushistory.org writer"s take on Sustain"s duration underwear and also exactly how it works.


Number of pads and also tampons (plus their wrappers and also applicators) supplied over one woman"s life time that deserve to end up in landfills and our oceans.


How a lot a womale can spend on traditional period commodities over her lifetime.

2–5 years

How lengthy duration underwear have the right to be wamelted and also reoffered, “as lengthy as you wash them by hand also via cold water regularly,” says Hollender.

So ... does duration underwear actually work?

Yes! Period underwear are designed to relocation your use of pads and tampons. They have the right to replace liners, pads, tampons, and cups, or be worn with a tampon or a cup for extra defense.

Can you wear period underwear all day?

Depfinishing on what form of period underwear you have actually and wbelow you are in your cycle, you might have the ability to wear a pair of period underwear all day. You have the right to normally buy hefty, tool, or light flow versions of most period underwear. If you wear period underwear as extra security on your heavy days (via a tampon or menstrual cup), it"ll be less complicated to wear the underwear all day. On light days, it"s likely you"d only require one pair of underwear to last the day.

steustatiushistory.org Tip

What"s the address PFAS?

Short for per- and also polyfluoroalkyl substances (say that three times fast), PFAS have actually been displayed to be harmful to human health and wellness even at low concentrations, and have actually been connected through cancer and also lessened fertility. While some duration underwear brands tested positive for PFAS, Sustain"s underwear underwent an independent lab examine that evidenced the product was PFAS-cost-free.

“From day one, Sustain has supported for better ingredient transparency and regulation for menstrual hygiene commodities,” says Hollender. “Additionally, because we launched, Sustain has always provided 100% of our product ingredients on our webwebsite and also packaging. We"re happy to view confirmation that our period underwear is PFAS-cost-free.”

No have to concern about looking choose you’re wearing the tantamount of an adult diaper; a lot of brands market two sizes to fulfill your lighter or heavier circulation needs. They’re also readily available in a large variety of colors and also cuts, from ultra femme, lacy thongs to even more gender-neutral boy shorts. If you’re searching for a bikini-style panty, Sustain has actually a selection of sizes in chic babsence organic cotton. Want to swim? RubyLove provides a period-defense swimwear line. For the younger set, Thinx have actually especially tween- and also teen-designed period panties in a choice of smaller sizes and also fun colors.

How many pairs of period underwear perform I need?

If you’re initially trying them out, you’ll probably want numerous pairs to replace your standard period assets on your lighter days. If you decide to commit, you’ll likely desire a complete five- to seven-day set depending upon the size of your circulation, so you’re not laundering eincredibly other day. You have the right to also take into consideration a sleep-specific pair or two: If you want to sleep worry-totally free, look for a reduced that fits a little even more snug (go for stretchy fabrics) with extra coverage for side and also rear leak defense.

Tip 1: Soak

After you remove your duration panties, drop them in cold water to soak or rinse them.

Step 2: Wash

If machine washing, first area them in a washable mesh bag and also wash on the breakable or gentle cycle. To make your underwear last, think about hand-washing via a mild detergent.

Tip 3: Dry

Do not put in dryer. Instead, lay underwear flat or hang dry to aid preserve the fabric"s integrity.

Tip 4: Treat

Worried about stains or lingering smells? Period undies are designed to be stain-resistant and also shouldn’t retain a scent if cared for properly, yet you have the right to soak them in vinegar/water mixture before laundering, also.

Is duration underwear a solution for my leaky bladder?

Usually, no, although Thinx has actually occurred Speax, a line specifically for bladder security.

Can I use duration underwear for postpartum bleeding?

Yes. During the initial postpartum duration, you may want to pair them via pads.

Can I swim in period panties?

You have the right to discover duration swimwear particularly designed for this. In general, though, you’re best making use of a cup or tampon and saving your duration panties for dry land.

Shop period underwear

Ready to give duration underwear a try? Pick up a pair of Sustain"s Period Underwear. Available in five sizes, our organic cotton period underwear are a reusable alternative to tampons and also pads. They absorb as much as 1 tampon"s worth of blood, and deserve to be washed and re-worn aacquire and aget. Use as a replacement for disposable assets or as a backup. Even better? One percent of eincredibly Sustain purchase goes to our 1%4Women money that supports women’s wellness establishments in the U.S.

What is steustatiushistory.org Collaborative?

Did you know UNITED STATE carriers make 76 million pounds of plastic eincredibly day, yet just 9% of plastic is recycled. At steustatiushistory.org, we think it"s time to sheight making plastic. Today, we"re plastic neutral. By 2025, we"ll be 100% plastic-free! Plus, every little thing marketed at steustatiushistory.org is nontoxic, sustainabile, and also cruelty-free.

Do I gain a cost-free gift via my initially order?

At steustatiushistory.org, we love presents. With your first order, you deserve to choose a complimentary Mrs. Meyer"s Cleaning Set or a steustatiushistory.org gift set.

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