Allyscia F. Verified
I really love them, they're amazing! And so comfortable.
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Ayla and Olivia are both wearing a size M. Symon is wearing a 3XL.
This style runs true to size.
We want you to be as comfortable as possible on your period. Just follow the measurements above.
We recommend measuring yourself instead of relying on your usual size. Every style and pair varies, so please check this if you are ordering multiple styles.
If you sit in-between sizes, we recommend sizing up.
Waist: Measure the narrowest part of your waist, below the ribcage and above your hip bone.
Hip: Measure the fullest part of your hip, keeping the tape measure straight.
Under our 30 Day Risk-Free Trial, first-time customers may try one garment from their first order with no risk.
You can read more about it here.
These return rights come in addition to the usual Statutory Rights summarised in this policy. Please read this returns policy carefully, as it contains important terms relating to your purchase.
Mix and match colours and sizes across the same style of period underwear.
Here is how to claim your free pairs:
🎁 For 1 FREE pair: just add 3 single pairs to your cart. The offer is applied automatically to one pair.
🎁 For 2 FREE pairs: just add 5 single pairs to your cart. The offer is applied automatically to two pairs.
Please note: this offer cannot be combined with other offers or discounts.
More than words from us β take a look at how women everywhere are wearing AuntFlo.
Holds up to 1.5 tampons
Incognito under your tightest clothes
Perfect for the active girlies
Better for you & the planet
Oh no, the wrong size ended up in your cart...
Because our products are classified as sanitary items, we are unable to swap them over for you, so they will need to stay with you.
Sanitary products that come back to us cannot be sold again, even when they are genuinely unused, unworn and unwashed. That rule exists to keep hygiene, health and safety standards strict, protecting both our customers and our warehouse team. We are here for the planet, but we are here for your health too!
That said, if this is your very first order with us and the size you picked was a mistake, we can send you one pair of underwear in the correct size as a gift.
Just reach out to our support team and we will sort it out with you!
It depends on how heavy your flow is and which absorbency level you picked. Our period undies can be worn completely on their own, or alongside extra protection if you prefer.
Give yourself a cycle or two to find the combination that suits you best. No two periods are the same!
Yes, our period undies are PFA free. PFAs have never been part of how our products are designed.
How long you can go between changes comes down to a few things: your flow, the absorbency of the pair you are wearing and how comfortable you feel. Use these guidelines as a starting point:
Above all, listen to your body and change whenever comfort starts to slip. That is what keeps you confident and fresh.
Under our 30 Day Risk-Free Trial, first time customers get to try one garment from their first order with no risk at all. If it does not perform the way you hoped, we will happily refund that single item (shipping costs excluded).
Full details are available here.
These return rights sit on top of the Statutory Rights you already have, which are summarised in this policy. Please read it carefully, as it holds important terms about your purchase.
Country - United States
Country - Canada
Country - UK
As soon as your order leaves our warehouse, an email with your tracking number lands in your inbox.
Still nothing after 15 days? Email us straight away and we will chase it up with the courier.
Women from all over Australia, UK & New Zealand are living comfortable and confident!
I really love them, they're amazing! And so comfortable.
I've tried other period G-strings that never gave me the confidence these ones do! They're also perfect for the gym since they're seamless, so you can keep wearing tights and nothing shows.
Arrived incredibly fast. Awesome quality.
I absolutely love this brand!
I love them so much! They're super comfy, they don't look tacky at all and they still make me feel confident even during that time of the month. These are for lighter days and I'm definitely going to buy the heavier period undies πππ thank you!!
These are a life saver!! As someone who always struggled with reactions to pads and an inconsistent flow for tampons, they're a game changer!! I wear them every day, even off my period, because I work a very physical job and get sweaty down there. They genuinely help with that too! I love them so much I'm already ordering other styles. Super comfortable, extremely absorbent, easy to clean. They take about 1.5-2 days to fully air dry, but even so I could not live without these!!
The fit is perfect and the fabric is so buttery soft, it makes my period far more comfortable and stylish!
Absolutely love these! Cute, reliable, comfortable and ethical! I'm definitely telling everyone about them πππ
I love this underwear! It really works and it's very comfortable too.
I'm not usually a G-string girl, but I decided to give it a go. So soft, so comfy.
Durable.
Wow. As a girl with a very heavy endometriosis flow, I'm constantly bleeding through tampons, pads, thongs, you name it. This has genuinely changed my life. I can wear a smaller tampon that doesn't hurt as much AND still stay protected from my flow AND work out in my leggings with these thongs. Iconic!!
Easily the best undies I've ever owned. Thank you for making it easier to hit the gym with no bulky pads in sight.
They're so comfortable and they work perfectly. Even during workouts they've been great. So happy I found this website!
Great product! The fabric is good and durable, and I'm loving the fit. Great for exercising.
Best period underwear on the market. I've tried so many and this was my first comfortable, stress free period ever, and I'm 32.
Amazing quality and they look so good! So happy with them.
Great, soft fabric, comfy.
So comfy, great design and shape! I just wish they came in a XXS, as the XS is a little loose around the crotch for a size 6.
So comfy! Does the job.