Bikini Period Underwear in Black


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EMFLOWER Bikini period underwear is breathable, lightweight and incredibly soft.

Mid-rise, stretchy waistband and looser fit around the legs.

Made from 95% Organic Bamboo (5% Elastane), this fabric is not only better for the environment, but better for your body too. Organic material does not cause rashes or irritation.

Designed in Australia, EMFLOWER are committed to making comfortable & leak-resistant underwear. When you wear our underwear, you'll be able to continue doing your everyday activities like playing sport, going to school/work, or dancing all night long.

Featuring 4 layers of waterproofing technology, the padding in the crotch extends all the way up the back of the underwear, so you can sleep soundly knowing your white sheets are safe from stains.


    EMFLOWER'S Bikini Period Underwear style holds the equivalent of 3-4 tampons.

    For light periods: We recommend changing our Period Underwear every 12 hours.
    For medium periods: We recommend changing our Period Underwear every 9-12 hours.
    For heavy periods: We recommend changing our Period Underwear every 6-9 hours.

    Models are wearing a size XS/6 and 2XL/16.


    Leak free, odour free and worry free

    We have tested our Emflower Period Underwear over and over again, to ensure the 4 layers of technology within the material will be consistently leak free, odour free and maintain its elasticity wash after wash.
    With proper laundry care, Emflower Period Underwear will easily last you many years and up to 90 machine cycle washes.
    We guarantee Emflower Period Underwear can hold a minimum of 4 regular tampons, or roughly 25ml of liquid. See the info-graphic below to learn how the 4 layers of technology work within our Period Underwear:

    Emflower period underwear information

    Care Instructions

    Care Instructions:

    1. Rinse your Period Underwear in cold water within 24 hours.
      You can also soak your Period Underwear in a bucket of cold water with a little bit of laundry detergent until you are ready to wash them.
    2. Put your Period Underwear into a laundry wash bag that can be zipped closed, then into the washing machine.
    3. Wash your Period Underwear on a warm wash (around 40 degrees Celsius).
    4. Hang dry your Period Underwear. Do not put them in a dryer or iron them.
    5. Do not use fabric softener or bleach on your Period Underwear.

    Check out the common questions we get asked at Emflower about our Period Underwear:

    How many hours can I wear my Period Underwear for?

    Well that depends on how heavy your period is. Our Period Underwear hold up to 4 tampons worth, which is equivalent to 1 day with a medium to heavy period. If you generally use more than 4 tampons during the day, make sure you keep a spare pair of Period Underwear in your bag just in case.

    Will my Period Underwear stain?

    To decrease the chance of your Period Underwear staining, make sure you rinse or soak them within 24 hours after wearing them. If you are not doing washing for a couple of days, leave them soaking in a bucket of water with a little bit of laundry detergent.

    Do not use bleach on your Period Underwear, as we use a plant-based dye to colour the underwear and bleach will strip this colour.

    How many pairs of Period Underwear do I need?

    That depends on how long your period lasts, and how heavy it is. We recommend changing your Period Underwear each day and night for heavier periods. So if your period usually lasts 4 days, we would recommend 8 pairs of Period Underwear. When your period is medium to light you could easily get away with wearing 1 pair for up to 24 hours.

    Can I wear Period Underwear with other menstrual products?

    Yes you certainly can. For those with heavier periods, we recommend pairing your Period Undies with a menstrual cup for that extra protection. They can also be worn with tampons and pads, but in all honestly they don’t need to be. They have 4 layers of protection so you should be more than fine to just wear your Period Underwear by themselves, unless you have a really heavy flow.

    Can I wear Period Underwear Swimming?

    Unfortunately you cannot wear your Period Underwear swimming. Those 4 layers holding it all in will definitely leak out into the pool or ocean. We recommend using a menstrual cup when you go swimming, as you will be fully protected from leaks.


    Bikini Size Chart

    Hip Hugger size chart

    Customer Reviews

    Based on 27 reviews
    Eloise Smith
    First time period undies user, now converted!

    I've always been a little bit sceptical about using period undies, but recently I decided I wanted to give them ago so that I could be a little more sustainable at that time of the month. I was impressed with how well they worked but also how comfortable they are. Sometimes I will still use a tampon on my heavier days but at night time the Emflower period undies were all I wore and I'm defs converted now

    Kathy Gallagher



    These Period pants are just fantastic. Very very comfortable and have great capacity to hold 4 tampons worth. Super well fitted


    I have been wearing these period undies for a few months now and I haven't had any issues with leakage


    They are actually really comfy to sleep in, and I don't feel like I am wearing granny panties at my time of the month

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