The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows
The Bikini Period. in Organic Cotton For Heavy Flows

The Bikini Period. in Organic Cotton For Heavy Flows

4.3
Rated 4.3 out of 5 stars
964 Reviews
$12.00
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1 pair absorbs 9 tampons of flow

Super absorbent, sleek style made for heavy days. 

Absorbs 9 tampons worth of flow or five pads. 

Yup. I’m for those days when your period has your foot down on the flow pedal. I have a little less fabric than the high-waisted, but with the same four-layer towel system I have just as much absorbency. My padding is designed to take whatever the flow throws, while making you feel extra secure and safe. Oh, did I also mention how cozy and comfy I am? Anything a tampon or pad can do, I can do so much better. 

When to wear:  On your heaviest days. Also great for postpartum and perimenopause.

Trying to do period math? Click here to work out how many pairs you need for your period according to your Flow Threshold.

This style runs true to size. Order your most standard size. 

You can see our size chart here.

Our Fabrics

Body: 95% Organic Cotton with 5% Spandex Jersey

Absorbent Layer: 100% Polyester  

Leak Resistant Layer: 100% Polyester PUL

 

How to take care of your Period.

Rinse for a few seconds.

Either hand wash and hang dry, or add to the laundry pile.

Regular wash, no bleach.

Tumble dry low or hang dry.

Do not dry clean.

Each pair of Period. underwear can hold up to 9 tampons worth of blood.

Check out our absorbency test video here.

You can see the length of the absorbent panel here.

How long will one pair of Period. last?

Everybody periods differently so it’s tough to be exact. Our average time is about 8 hours on a heavier flow day. Though some customers need to change after 3 to 4 hours, and others can go up to 14 hours (lucky them!). As your period gets lighter, one pair can take you through the day and night (just like regular underwear). But again, everybody Periods differently, so you need to take one cycle to figure out exactly how often you need to change. Start with a conservative estimate on your heavy days, and check in on your Period underwear after 4 hours. If you still feel good, give it another hour. Keep going until you figure out your limit. Here at Period, we find we need between 3 to 4 pairs on the first two heavy days, including evenings. And if you leak, please forgive us! Just this once. (Remember how many tampons you have forgiven). Treat the ‘leak’ as a gift and note the hour of your leakage. That is the best indicator of your ‘flow threshold’ how long the underwear will last for you.

Message from an Octopus: Hi. I wanted to send you a personal message of gratitude for being conscious enough to stop using disposable products. Imagine me now, shaking your hand eight times. That’s what I’m doing. And sending you good energy with my two hearts. Tampons and pads take generations to biodegrade, cause endless pollution and they are frankly stupid inventions - and I should know what stupid is because I have eight brains. Be proud of yourself - you’re making a big change. 

4.3
Rated 4.3 out of 5 stars
Based on 964 reviews
Total 5 star reviews: 563 Total 4 star reviews: 206 Total 3 star reviews: 130 Total 2 star reviews: 56 Total 1 star reviews: 9
80%would recommend this product
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964 reviews
  • MK
    Morgan K.
    Verified Buyer
    I recommend this product
    What size of underwear do you typically wear? 2X
    What size in Period. did you purchase? 2X
    What do you use your Period. products for? Primary Period Protection, Overnight Protection
    Rated 4 out of 5 stars
    14 seconds ago
    Larger size than expected, very full coverage

    They work pretty well. I had some leaking overnight, but my periods are incredibly heavy. The sizing is also a little off, and I think I should have sized down. These are very high-waisted, very full-coverage undies.

    Was this helpful?
  • AV
    Anita V.
    Verified Buyer
    I recommend this product
    What size of underwear do you typically wear? XS
    What size in Period. did you purchase? S
    What do you use your Period. products for? Primary Period Protection, Overnight Protection
    Rated 5 out of 5 stars
    Yesterday
    Great sustainable option for periods

    These are awesome for my teenager

    Was this helpful?
  • AG
    Ashley G.
    Verified Buyer
    What size of underwear do you typically wear? S
    What size in Period. did you purchase? S
    What do you use your Period. products for? Primary Period Protection
    Rated 3 out of 5 stars
    1 week ago
    A big too tight

    So, I'm usually an XS and I don't think my flow is heavy, but I wanted a bikini cut in cotton so I tried these in size small. They actually fit tighter than the Teen small, which I purchased for my daughter, and were too tight and bulky for me. It seems the added thickness for heavy flow means you might want to size up.

    Was this helpful?
  • IJ
    Isabella Juana S.
    Verified Buyer
    I recommend this product
    What size of underwear do you typically wear? L
    What size in Period. did you purchase? L
    What do you use your Period. products for? Period Backup, Overnight Protection , During Exercise
    Rated 5 out of 5 stars
    2 weeks ago
    Worth the money!

    Bought only one of these as a trial to see if I’d like them—glad to say I really did! I use a menstrual cup, but have an incredibly heavy flow especially on days 1-3. Been wanting to try period underwear and in my research, a lot of people have recommended The Period Company. Super glad I listened to them and tried these—I’m already buying some more!

    Was this helpful?
  • E
    Emily
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    5 Stars

    I love that these are so comfortable and they don’t pinch anywhere. I didn’t think I’d ever find myself with a pair of these but I do really like them. You don’t feel dirty or gross like a pad makes me feel. Definitely recommend trying!

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