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Seamless Active Period Undies
β˜… β˜… β˜… β˜… β˜…  4.4 from 341 reviews

Seamless Active Period Undies

$25.99

βœ” Invisible under leggings & activewear
βœ” Seamless where it matters
βœ” The pair you'll wear on repeat

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Introducing AuntFloβ„’ Gym Bestie Seamless Active πŸ‹πŸ½β€β™€οΈ.

Free Shipping

Over $71.99

30-Day Risk Free Trial

Free From PFAs

& Chemicals

Sizing Guide
Size & Fit:

Ashlee is wearing a size M.

Customer Feedback:

This style runs true to size.

How To Measure:

We want you to be as comfortable as possible on your period. Just follow the measurements above.

We recommend measuring yourself, and not going by your standard size. Each style and pair will vary, so please check this if ordering multiple styles.

If you're 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, making sure the tape measure is straight.

Description

Introducing AuntFloβ„’ Gym Bestie Seamless Active πŸ‹πŸ½β€β™€οΈ.

Risk-Free Trial

As per our 30 Day Risk-Free Trial, first time customers can try one garment from your first order risk-free.

You can read more about this here.

These returns rights are in addition to your usual Statutory Rights summarised in this policy. Please read this returns policy carefully as it contains important terms relating to your purchase.

Mix & Match

Mix and match colours and sizes of the same style period underwear.

Here's how to claim your free pairs:

🎁 To claim 1 FREE pair: Simply add 3 single pairs to your cart. The offer will be automatically applied to one pair.

🎁 To claim 2 FREE pairs: Simply add 5 single pairs to your cart. The offer will be automatically applied to two pairs.

Please note: This offer can not be combined with other offers or discounts.

Worn and loved by over 50,000+ Women

Don’t just take our word for it... discover how women everywhere are wearing AuntFlo.

Customer review
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Xanthie P. βœ“

Love love love these undies
the leopard print ones do fit
a little small but everything
else is...

Customer review
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Rebecca C. βœ“

The undies feel beautiful,
lovely quality and wonderful
fit. So comfy and nice to
wear.

Customer review
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Karina C. βœ“

I love these period undies!
Super comfy and very
absorbent. Definitely
recommend Aunt Flo
undies!

Customer review
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Sophie H. βœ“

So comfy I have been
wearing them as bedtime
shorts even when I’m not
on my period

Customer review
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Customer βœ“

Beautiful quality and
super comfortable to wear.
I absolutely love them.

Customer review
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Customer βœ“

So soft and comfortable.
They fit really well and
feel amazing all day.

Customer review
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Customer βœ“

Great fit and excellent
quality. These are so comfy
and easy to wear.

Customer review
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Customer βœ“

Comfortable, flattering and
perfect for everyday wear.
Would definitely recommend.

Medium Period Protection

Holds up to 3-4 tampons

Made To Move

Perfect for the active girlies

Actually Seamless

Incognito under your tightest clothes

Wear, Wash, Reuse

Better for you & the planet

With Our 4-Layer Technology
Layer 1: Top Layer
Layer 2: Absorbency
Layer 3: Waterproof
Layer 4: Cotton

Have Questions?

AuntFlo Will Answer...

What if I get the wrong size?

Uh oh, you've grabbed the wrong size...

Unfortunately, due to AuntFlo products being labelled as Sanitary products, we are not able to switch these over for you. You will need to keep these.

Returned sanitary products cannot be resold, despite claims of them being unused, unworn, and unwashed. This is to maintain and uphold strict hygiene, health, and safety standards to protect our customers and warehouse staff. After all, we’re not only here for the planet, but also for your health!

However, if you are a first time customer with us, we can gift you one pair of underwear (in your correct size) if you have accidentally initially purchased the wrong size.

Please email us at contact@auntfloshapewear.com to chat more about this!

Do I wear them on their own?

Depending on your flow, and the absorbency level of the underwear you have chosen, you can wear our period undies on their own, or with some added protection.

Take some time to figure out what works best for you! Every period is a unique one.

Is AuntFlo free from PFAs?

Our period undies are also PFA free. PFAs are absolutely not part of our AuntFlo product design.

How often should I change them?

Knowing when to change your period underwear depends on factors such as your flow, the absorbency of the underwear, and your personal comfort. Here are some general guidelines to help you determine when it’s time to change:

1. Flow Level

  • Light Flow: If you have a lighter flow, you may be able to wear your period underwear for up to 8 hours without needing to change, depending on the product's absorbency rating.
  • Moderate Flow: For moderate flow, you should change your period underwear approximately every 6-8 hours, especially if you feel any dampness or discomfort.
  • Heavy Flow: On heavy flow days, it's best to change your period underwear every 4-6 hours to prevent leaks. You may need to change more frequently depending on the volume absorbed.

2. Signs of Full Absorbency

  • Feeling Damp or Wet: If you begin to feel moisture or dampness through your period underwear, it’s a sign that it has reached its absorbency capacity, and you should change them.
  • Discomfort: If the underwear starts feeling uncomfortable or you're aware of the fabric sticking to your skin, it's a good idea to change them to maintain comfort and hygiene.

3. Personal Comfort

  • If you start feeling less confident or comfortable, even if the underwear hasn't reached its absorbency limit, it's a good idea to change them.

4. Activity Level

  • If you're very active, especially if you're exercising, swimming, or moving around a lot, you might need to change your period underwear more frequently.

5. End of Day / Overnight Use

  • If you’re using your period underwear overnight, you may want to change them after 8-12 hours, depending on your flow.

Overall, always listen to your body and make changes when you start feeling uncomfortable, to maintain confidence and hygiene.

30 Day Risk-Free Trial

As per our 30 Day Risk-Free Trial, first time customers can try one garment from your first order risk-free. If you're not satisfied with how it functions, we'll gladly refund the cost of that single item (excluding shipping costs).

You can read more about this here.

These returns rights are in addition to your usual Statutory Rights summarised in this policy. Please read this returns policy carefully as it contains important terms relating to your purchase.

Shipping information

Country - Australia

  • FREE Standard Shipping (5-15 Business Days) for orders over $99AUD
  • Standard Shipping - $9.99 (Orders under $99AUD)

Country - New Zealand

  • FREE Standard Shipping (5-15 Business Days) for orders over $99NZ
  • Standard Shipping - $9.99 (Orders under $99NZ)

Country - UK

  • FREE Standard Shipping (5-15 Business Days) for orders over Β£50
  • Standard Shipping - Β£5 (Orders under Β£50)

Once your order has been dispatched, we'll send you an email with a tracking number.

If your order hasn't arrived after 15 days please email us immediately and we'll follow up with the courier.

Customer Reviews

Women from all over Australia, UK & New Zealand are living comfortable and confident!

Mikaela C. Verified

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I have been a period undies wearer for years. Another brand I have always marketed their undies as seamless so I tried them and unfortunately they were definitely not! So when I ordered these I was skeptical but they are amazing. I can wear them at the gym without feeling self conscious and they’re so comfortable. A very happy customer that will definitely be returning!

Dina F. Verified

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These were awesome - they go a little higher than I expected but they're pretty comfy. ✨

Abigail S. Verified

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These are so comfortable and perfect for day to day wear or going to the gym. They fit really nicely. Goodbye to uncomfortable period products I won't ever go back?

Bec P. Verified

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Where do I start! They are super comfortable. I have these and the heavy night time ones and I am living life with no regrets! No β€œdid I leak” in the mornings, no annoying pads that ride up your crack. Love them!

Olivia O. Verified

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These seamlwss period undies are a 10/10, literally threw out all my other period undies for these

Jessica D. Verified

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These are so comfortable and gives me good support. The fit is perfect, not too firm, not too soft. I pair these with my menstrual disc and it’s perfect.

Alyce S. Verified

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The most wonderful undies I’ve ever wore 🫢 I will never buy another brand again.

Honnie N. Verified

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Super comfy and invisible under gym leggings! Love!

Ashleigh G. Verified

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Good fit and so comfy and very good

Sarah F. Verified

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Love the product! Comfortable and reliable!

Elizabeth B. Verified

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These are truely the most incredible period undies I’ve tried. I’ve had so many other brands and I do not know why it took me so long to try these. I would have saved so much $$$ I do understand they might looke a bit $$ to begin with but they are on par with all other brands and the bundles once you find your size makes it more affordable!! They are also beyound the quality of any other pairs I’ve ever had!!

Emma S. Verified

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So comfy! The right kind of stretch and they stay all day!

Lucy J. Verified

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Super comfy and fully stocked.

Hannah O. Verified

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I've tried the undies for 2 cycles now and I'm really happy with them. They sit super comfortable and feel dry throughout the day (even on my heaviest day). I wear them under my leggings and they're pretty much invisible. They truly make my period more comfortable and that's exactly what you need during those days.

Calypso M. Verified

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Perfect everyday brief!

Koley S. Verified

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Comfortable under clothing

Sebastien V. Verified

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Thank you for sending the replacement through! We love it

Elyse S. Verified

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My biggest gripe with my period old undies was how bulky they were and so I was limited with what I could wear to the gym. These are invisible under my leggings, absorbant and super comfortable. I did buy a bigger size (XL) than I normally am (usually medium) and it fits perfectly.

Kathryn P. Verified

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Feel great for working out, not just for periods but great when lifting heavy with a belt on and accidentally leaking.

L A. Verified

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The best period undies so soft on. Definitely going to buy more.