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

4.2
Rated 4.2 out of 5 stars
966 Reviews
Regular price $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 10 tbls, or 8-10 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. 

4.2
Rated 4.2 out of 5 stars
Based on 966 reviews
Total 5 star reviews: 544 Total 4 star reviews: 200 Total 3 star reviews: 126 Total 2 star reviews: 55 Total 1 star reviews: 41
77%would recommend this product
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966 reviews
  • SA
    Stephanie A.
    Verified Buyer
    I recommend this product
    What size of underwear do you typically wear? M
    What size in Period. did you purchase? M
    What do you use your Period. products for? Primary Period Protection, Overnight Protection , Light Bladder Leaks
    Rated 5 out of 5 stars
    16 seconds ago
    Better than expected

    These are comfy and they do hold a lot! I like them better than other period underwear I have tried and I hope they last!

  • A
    Alyssa
    Verified Buyer
    What size of underwear do you typically wear? 3X
    What size in Period. did you purchase? 2X
    What do you use your Period. products for? Primary Period Protection, Overnight Protection , Everyday wear
    Rated 3 out of 5 stars
    3 days ago
    Ok, but not my favorite

    I've found that this type is pretty comfortable and fits pretty true to size. However one of the pairs is basically fallen apart (stitching at the hems came undone) Also I'm finding it's not actually working for heavy flow. I don't if I just tend to flow in one spot, but it's definitely less than the 9 tampons worth of blood. And then it's like it starts absorbing under the hem and into the outer layer. My sporty period has held up a lot better and doesn't seem to have the same problem, so I'll probably mostly stick to that one.

  • K
    Kristen
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    5 Stars

    Fits beautifully and super absorbant so never a worry of an accident in these

  • R
    Ruben
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    5 Stars

    These are amazing! I got my girlfriend four of them and they are a lifesaver.

  • A
    Amy
    Verified Buyer
    I recommend this product
    What size of underwear do you typically wear? S
    What size in Period. did you purchase? M
    What do you use your Period. products for? Overnight Protection
    Rated 5 out of 5 stars
    2 weeks ago
    Restful Night’s Sleep

    I love these period undies for night time. I can sleep in any position, no leaks, and even on my heaviest flow I don’t have to get up in the middle of the night to change out a pad. Recommend these to all my girls.

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