Period panties that let you go with the flow

The term “period” underwear has been given a new meaning thanks to some truly innovative companies. The term “period underwear” refers to the plain, low-quality, uncomfortably worn during your period. However, it has been transformed into something amazing. Period panties today fit like regular underwear but have extra layers of fabric in their gusset to absorb menstrual blood. You can wear the best period underwear without any other protection to provide more comfort while you go about your day.

Best Period Underwear Overall

An Affordable Pair Of Absorbent Panties

Knix Cotton Modal Super Leakproof Bikini


  • Sizes XS to 4XL
  • Absorption: Light up to super
  • Care Instructions: Machine wash cold, tumble dry low

Knix was founded to make underwear less frilled and more functional. Knix’s Leakproof collection features period underwear in four levels of absorbency: medium, high, super, and light. The underwear can absorb between one to eight teaspoons of menstrual fluid, depending on the level. Referring to the table, a regular tampon can hold about 1 teaspoon of blood.

There are many styles, including a lacy thong or a high-rise period kit that includes five pairs of underwear of varying absorbency levels (the options are light, heavy, and mixed flow).

Best Period Underwear For Postpartum

A Comfortable Fit That Offers Superior Absorbency

Leakproof Hipster


  • Sizes XS to 3XL
  • Absorption: Light to super-heavy
  • Care Instructions: Machine wash gently, dry with a towel

Three sisters created Proof to make it easy for women to go through their cycles without worrying. There are eight styles of leakproof underwear, including everyday undies and lace cheeky. They make you feel confident and protected. The absorbency can be super light (to replace panty liners) or super heavy (10 teaspoons of flow). This super-heavy, high-waisted style can double as an absorbent and protective layer for moms during their postpartum weeks.

You can choose from light, moderate, or full coverage, depending on your style. Moderate coverage is ideal for daily wear. Fuller coverage options are great for exercise and sleep, while fuller coverage options can protect you from leaks. These pants also protect against odors and wick away sweat.

Best Period Underwear For Heavy Flows

You can use this guide every day of your cycle, from the lightest to the heaviest.

Super Hiphugger


  • Sizes XXS to 4X
  • AbsorbencyLightest to Super
  • Care Instructions: Machine wash cold, dry air

Thinx is perhaps the most popular brand of period underwear, thanks to social media. It’s also one of the most versatile. Thinx offers a classic line of underwear with nine styles: French, cheeky and short. There’s also an organic cotton collection that has four basic styles. Super can hold 9.1 teaspoons.

Each pair of underwear has a moisture-wicking layer at the gusset. It also contains an antibacterial silver application. This is commonly used in medical devices and performance activewear. Thinx offers period underwear as well as leggings and sleeps shorts.

Best Versatile Period Underwear

Modibodi Sensual French Cut


  • Sizes XS to 4XL
  • AbsorbencySuper Light to Maxi (24 Hours)
  • Care Instructions: Rinse with cold water and air dry

Modibodi, an Australian brand, has all kinds of period underwear. There are eight styles to choose from, including thongs and boy shorts, as well as six levels of absorbency, ranging from moisture-wicking to 24-hour protection. The ultra-light period underwear can hold 0.5 teaspoons of liquid, while the maxi flow options can hold nearly nine tablespoons.