Sidonie Bikini

The materials used to manufacture our knickers are free from substances harmful to the body and the environment (no chemicals and in particular no treatment with silver nanoparticles). Our fabrics, laces and elastics are BIO and/or OEKO-TEX certified. Our manufacturing and materials are all sourced from the Mediterranean basin.

What's more, we package our panties in a 100% recyclable Kraft cardboard envelope.

To find out more, visit our "Manufacturing" page, accessible from the main menu.

For your 1st purchase, we offer you the possibility of testing your panties free of charge for 30 days, i.e. 1 entire cycle.

And if it doesn't suit you, we'll give you your money back, no questions asked!

You're not taking any risks, so GO! GO! GO!

Find out more about the "Satisfied or your money back" offer at the bottom of the page.

We deliver to all countries in the world.

We offer home delivery from £34 in United Kingdom

For other cases:

- United Kingdom, Germany, Belgium, Luxembourg, Netherlands, Liechtenstein, Switzerland: €6.10

- Metropolitan France (order under £80): £4.98

Other European Union countries: £8.90

Rest of the world: £18.35

We cannot anticipate or take responsibility for any customs charges that may apply in the recipient's country.

Delivery times

Our products are delivered by post (Chronopost) for France or by Chronopost or Delivengo for abroad. Orders are prepared from Monday to Friday, excluding public holidays, within 12 to 48 hours of receipt of payment for the order.

These times do not include pre-orders.

Postal delivery is then usually made within 48H/72H for an address in mainland France.. 

International delivery times can vary from 2 to 4 days in Europe to longer for countries outside Europe.

Depending on how heavy your periods are and the level of absorption you choose (light, medium or super), your Sisters Republic panties can replace your tampons, sanitary pads, cup... or be used to reinforce them. For example, if you have a bleeding period (copper IUD, endometriosis, hormonal imbalance...) and you want a 100% leak-proof guarantee, you can slip on your Sisters Republic panties in addition to other protection and get through the day with complete peace of mind. Or you can use your Sisters Republic panties on their own, but only from day 3 of your period, when the heaviest days have passed.

If, on the other hand, you have a normal to light period, you can use your Sisters Republic panties on their own throughout your cycle, for up to 12 hours at a time, without any risk of leakage, odor or wetness. All you need to do is adapt the degree of absorption of your panties to your current flow: Super absorption for the start of your period, Medium for the middle of your period and Light for the end of your period.

And to find out exactly how long you should keep your panties on, simply rely on how you feel, and change them as soon as you feel a slight dampness. But here are a few pointers to get you started:

TABLE

And for your first use, don't forget that it's best to start by testing at home, quietly, to see how it goes and understand your flow.

To maximize the absorbency of your panties, we recommend washing them 2 times before use. Then, to make them last as long as possible - because Sisters Republic period pants are washable and reusable for many years - we recommend :

1/rinse your panties in cold water as soon as you remove them, until the water runs clear.

2/wash it in the washing machine on the 30°C synthetic program (or by hand) with the rest of your laundry (I promise, everything will be fine :-)). If you don't have enough laundry, you can use the Sisters Republic 3-in-1 pouch to store your rinsed panties while you wait for your next wash - that's what the pouch is for :-) .

Do not use fabric softener or bleach.

Ideally, put your panties in a laundry net when machine-washing or in the Sisters Republic 3-in-1 pouch, which doubles as a laundry net.

3/let it air dry and do not use a tumble dryer.