The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows
The Bikini Period. in Sporty Stretch For Heavy Flows

The Bikini Period. in Sporty Stretch For Heavy Flows

4.4
Rated 4.4 out of 5 stars
469 Reviews
$9.00
/

Leak-free, super-absorbent, designed to withstand ultra-movement and sweat.  Absorbs 8 to 10 tampons worth!

Your favorite bikini can now do a marathon, a spin class, a barre class, you name it! Or I’m just great for a busy day of running around.  I’m currently the world champion in being waste-free and super-absorbent.

The Sporty. Bikini is made from our PeriodTech™ fabric - a super stretchy Nylon and Spandex knit that moves with you. As always, the gusset is made with organic cotton.

When To Wear: doing a marathon, going to the supermarket, and everything in between.

Trying to do period math? Click here to work out how many pairs you need for your period according to your Flow Threshold.
Discounts are not applicable to this style.

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

You can see our size chart here.

Our Fabrics

Main: PeriodTech™ 85% Nylon with 15% Spandex Knit

Lining: 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 a Cheetah: Hi! You know me. You know how much I love to run. Running is the best thing in the universe. The only that ruins it is when you run past a decomposing tampon or pad. Man, that sucks. There are some things you can't unsee and that's one of them. But not for much longer! With incredible people like you, we're going to end all this ridiculous waste and make my runs fantastic again. Kudos.

4.4
Rated 4.4 out of 5 stars
Based on 469 reviews
Total 5 star reviews: 313 Total 4 star reviews: 76 Total 3 star reviews: 56 Total 2 star reviews: 19 Total 1 star reviews: 5
83%would recommend this product
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469 reviews
  • AR
    Anna R.
    Verified Buyer
    I recommend this product
    What size of underwear do you typically wear? S
    What size in Period. did you purchase? S
    Rated 5 out of 5 stars
    10 seconds ago
    Love these!!

    I have tried other brands and these are the best! Excellent quality, absorbent and comfortable!!

    10/10! I highly recommend!!

    Was this helpful?
  • A
    Avis
    I do not recommend this product
    Rated 1 out of 5 stars
    18 hours ago
    1 Star

    Took FOREVER. First my order gets lost in transit . Address is stored in my phone I use that shipping address almost daily bc it’s my daughter’s. Then I don’t get offered a refund nothing they just reshipped the order again so i had to again wait. Finally got the order today . In was probably charged for that shipping too

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  • W
    Whitney
    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? Primary Period Protection, Overnight Protection
    Rated 5 out of 5 stars
    2 days ago
    I Swear by These

    I was skeptical about underwear for periods as I have very heavy flows. Days 1-3 almost always require 7-9 ultra tampons (yes, the ones bigger than super plus), plus a thick pad as I still leak through those. Days 4-7, bc my period almost always lasts a full week, I normally still need super tampons and a thick pad through to the end. I decided to try some period underwear anyway because I was tired of tampons, pads, and the waste. I bought 4 pairs from this company and was completely shocked at how well these take care of my flow. The bikini period in sporty style for heavy flows can give me full coverage all day and sometimes all night. Just 1 pair! Don't get me wrong, I don't like pushing it, so I use 2 pairs in a 24hr timeframe, but I tested it to find limits and 1 pair can withstand my heaviest day for 24hrs. No leaks, no issues. For ladies with very heavy flows like me or heavier, I recommend 2 pairs a day at least, especially for comfort. They are bulky in general but it's worth it. They wash well, too! Just do it, try them out. I'm now buying more as well.

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  • CM
    Christina M.
    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? Primary Period Protection
    Rated 5 out of 5 stars
    2 days ago
    Love these!

    These underwear have literally been life changing for my periods. I’ve been using these for about 6 months and haven’t leaked once. I recommend them to everyone.

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  • JG
    Jessica G.
    Verified Buyer
    I recommend this product
    What size of underwear do you typically wear? XL
    What size in Period. did you purchase? 2X
    What do you use your Period. products for? Primary Period Protection
    Rated 5 out of 5 stars
    1 week ago
    Comfortable and does the job

    I like the sporty stretch material. Breathable and comfortable

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