Discover our TEEN Models
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FREE DELIVERY FOR ORDERS ABOVE £34 (in the UK) 😍 No customs duties 😍

STUDENTS ? -15% DISCOUNT ALL YEAR ROUND Read more

Compose your pack

Compose your pack

Haven't found your ideal pack? Create your own! Assemble several models by mixing sizes, flows and styles of your choice and save money!

Create my customized pack
Sisters Republic UK

What to put in my pack

Depending on the length of your cycle, short or long, you'll need between 4 and 10 panties. If you want to wear your menstrual panties day and night, and wash them all at the same time at the end of your cycle, you'll need between 8 and 10 panties. If you want to wash them, so you can reuse them several times during your cycle, 4 to 5 panties will be sufficient. You need at least one panty for the day and one for the night, multiplied by the number of days of your period.

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Test it for real
BEFORE YOU BUY?

We understand that it's safer to try before you buy. That's why we're offering you the chance to test our panties for 60 days! And, if you're not convinced, we'll give you your money back, no questions asked (but we're convinced you'll love it 😎)!

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Discover our teen collection

Ultra-comfortable models in organic cotton ranging from 10 years to size M.

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Are you a student? Save 15% all year round

Living serenely with your period shouldn't be a matter of budget 😋

why choose sisters ?

Sisters Republic UK

Free delivery from £34

The Sisters will deliver to your home for free within 48 to 72 hours for orders over £34! Offer only valid in U.K. For all delivery details and conditions, plese consult the "Payment and delivery" section.
Sisters Republic UK

30 days to change your mind

Did you order the wrong size? Or perhaps the wrong style? Did you just change your mind? Don't panic! With Sisters Republic, you have the option to return your item(s) within 30 days. To be sure your return is accepted, please make sure you comply with all the terms and conditions listed on the "Returns and Refunds" page.
Sisters Republic UK

Made with ORGANIC cotton

All our fabrics, laces and elastics are either certified organic cotton or OEKO-TEX standard 100 (the same as for newborns). They are therefore guaranteed to be free of any substances that are harmful to the body and the environment.
Sisters Republic UK

2,275 tampons saved

A single pair of Sisters Republic panties lasts from 5 to 7 years if you take good care of them. And in 7 years you'll have saved 2275 tampons: 5 tampons/d over 5d of periods, 13 times in the year (365/28 = 13) over 7 years = 2275. Ain't life grand 🌞? Obviously, you need several panties for one cycle, but this is just to give you an idea of the savings you can make for your wallet and for the planet.

why choose sisters ?

Sisters Republic UK

Free delivery from £34

Read more
Sisters Republic UK

30 days to change your mind

Read more
Sisters Republic UK

Made with ORGANIC cotton

Read more
Sisters Republic UK

2,275 tampons saved

Read more

over 200,000 satisfied customers

the menstrual guide

Is it hygienic to wear period panties for 12 hours at a time?

Yes, because the fabrics used in Sisters Republic menstrual lingerie have been selected for their sanitary properties. Bamboo fiber is even a natural antibacterial. Only breathable organic and Oeko-Tex fabrics are used in our panties. Even after 12 hours, the pants remain hygienic and odorless.

Can I use my Sister Republic panties during sport?

Yes, your Sisters Republic panties are ideal for protecting you during sport because, unlike sanitary towels which can slip or fold, the panties-and therefore the absorbent part integrated into them-always stay securely in place. All our models are perfectly suited to sporting activities. However, we particularly recommend the sports boxer, as it's really interlocking and will follow your every move perfectly.

Do I have to change my panties during the day?

Because we know that changing panties during the day isn't very practical (you have to isolate yourself, take off your pants, etc.). Our period panties can be worn for up to 12 hours without leaking, smelling or feeling damp, so it's not necessarily necessary to change them during the day. However, if you have a hemorrhagic flow and feel the need to alter your panties in the middle of the day, our Mia panties can be unzipped at the sides, so you can remove them without taking off your shoes or pants.

Is it hygienic to soak in your own blood all day?

Firstly, contrary to popular belief, you don't soak in your own blood, because the 1st layer of fabric is breathable and dries very quickly. The airy weave allows liquid to pass quickly through the inside of the panty, leaving a dry feeling on the surface. The liquid is therefore directed, captured and retained by the absorbent fabric underneath, at the heart of the panty. Finally, unlike internal protection such as cups, tampons or menstrual sponges, period panties let the blood flow freely, so it doesn't stagnate in the vagina, which is the main cause of bacterial proliferation (and therefore of the very dangerous Toxic Shock Syndrome).

What are the delivery times?

Our panties are shipped directly from our French warehouses. Home delivery generally takes 24 to 72 hours and is free for orders over £80 (in mainland France). Delivery to a "point relais" can take an additional 24 to 48 hours, and is free from a purchase of £40 (in mainland France). When you place your order and select your shipping method, you'll be given an estimated delivery date.

Aren't menstrual pants more expensive than disposable sanitary pads?

It's true that it's an investment at the outset, but unlike other sanitary protection such as pads or tampons, menstrual panties are reusable and can last up to 7 years. A single pair of panties can replace 2275 tampons* (over 7 years). So menstrual pants really do save money in the medium term (* disposable protection saved ⇒ 5 tampons a day over 5 days of menstruation, 13 times a year (365/28 = 13) over 7 years = 2275). What's more, you'll find discounted packs in the store (-10% for purchases of 3 or more products, -15% for purchases of 5 or more products and -20% for purchases of 7 or more products), enabling you to place "group" orders, mixing different sizes and absorbency in the same basket.

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Choose your menstrual panties

Find the right underwear for your flow, your size and your style!

5 sizes available for maximum comfort

All our models are available in 5 sizes, because menstruation can start as early as age 10. We therefore offer a special size for girls aged 10 to 11, followed by references ranging from XXS to M to suit teenagers aged 12 and young women approaching 18.

3 absorbency levels to choose from to prevent leaks

Depending on your flow, you can choose the most suitable level: Super, Medium or Light. Each menstrual panty is designed to offer you up to 12 hours' protection, without leakage or odour. If you have normal to heavy periods (beginning and middle of period, for example), you should choose the Super level. For light to normal periods, choose the Medium level. Finally, the Light level is recommended for the last day of the period, for light urine leakage, or for vaginal discharge (spotting or white discharge). Please note that during puberty, periods can be irregular, and the flow can vary from one cycle to the next. If, during a cycle, your flow is heavier than usual, or if you have a hemorrhagic flow and/or endometriosis, you can use a sanitary protection in addition to your panties, or change your panties during the day. We also offer a waterproof carrying pouch to make changing easier.

Several models to suit your needs

Sisters Republic menstrual lingerie for teens is suitable for all activities. Our slim-fitting lingerie slips easily under dresses and jeans, even tight-fitting ones.

The Shorty Tattoo is available in 3 tattoo embroidery versions. It's up to you to choose which one - the lightning bolt, the eye or the heart - best defines your personality!

The Frenchy Shorty with its three-tone elastic band is available in mottled gray or black. It has enough coverage to prevent leaks and keep you dry during class or work.

The Charlotte Culotte offers a feminine cut. With its fine black and white stripes, it will be your everyday ally.

And for a more casual look, sport or just chilling out at home, the Shorty Sporty is just the thing. Available in 4 colors, you'll love them!

A menstrual panty with optimized comfort

All our period pants are designed to be comfortable and gentle on your body.

Healthy textiles for a healthy body

The organic cotton used in the manufacture of our menstrual pants is guaranteed free of harmful substances and not treated with silver nanoparticles. We also use natural plant fibers. The use of ORGANIC cotton is a real commitment on the part of Sisters Republic to reducing our environmental impact and avoiding the development of health problems linked to the use of products that are harmful to our bodies. We also fight against the use of harmful substances by using textiles certified free of toxic products by the OEKO-TEX Standard 100 label.

Thinner protection than a sanitary towel

Our period panties and shorties have no "diaper effect", but more surprisingly, they're also thinner than sanitary towels. They are less than 3 millimeters thick, for maximum comfort during the day or night.

Easy care for your period panties

There's nothing simpler than washing your panties. Once removed, simply rinse with plenty of clean water and put in the washing machine (synthetic program. 30 °C). You can also store your panties in a laundry net to make sure nothing happens to them during washing. Avoid fabric softener, bleach and tumble dryers. You'll be able to keep your underwear in perfect condition for longer.

The advantages of Sisters Republic

Discover our different packs to be equipped for your next period while saving money. Don't forget your 3-in-1 pouch to store your panties, preserve them before washing, and even protect them during laundry. We also offer a teenager's box including menstrual panties, an organic herbal tea to help you fight the pain, an educational book, a heart-shaped lollipop and a personalized postcard. You can also give a gift card to a friend to introduce her to your menstrual panties.

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<p><strong>Free delivery</strong> on orders over £34</p>

Free delivery on orders over £34

<p><strong>Satisfied or refunded</strong> for 60 days</p>

Satisfied or refunded for 60 days

<p><strong>Free 3X</strong> payment</p>

Free 3X payment

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