KNOW YOUR FLOW
Absorbency Guide
Our Summer Flow Kit — BFCM Exclusive (Save 30%) have a Super absorbency.
Check out the below guide to see how this level stacks up against our other products.
Summer Flow Kit — BFCM Exclusive (Save 30%)
●●●○○ | Super - Check out our absorbency guide here
60 Day Risk Free Trial
Your swim-season essentials all in one bundle. Choose your period-proof swim bottom, add a Wet Bag, and finish with a soft organic cotton brief for the perfect “Beach to Bed” pairing — and save up to 30% automatically.
The Summer Flow Kit is your go-to swim + comfort combo for warm days, beach trips, pool sessions, and active summer plans.
Designed for teens and adults, this Black Friday-exclusive bundle brings together one of our bestselling period swim bottoms, a waterproof wet bag, and a pair of soft, breathable organic cotton briefs for after-swim comfort.
Leakproof, lightweight, and designed to keep you moving confidently in and out of the water — this is the ultimate warm-weather essentials bundle.
WHY YOU’LL LOVE IT
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Save 20–30% instantly (auto discount applies)
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Build your kit your way — select your swim bottom, brief, and wet bag print
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Swim confidently during your period — zero leaks in or out of the water
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Breathable organic cotton brief for all-day comfort
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Wet Bag keeps wet items separate and mess-free
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Perfect for holidays, teens, gifts & travel
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Stacks with Free Gifts
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Exclusive to Black Friday — limited quantities available
📦 WHAT’S INCLUDED
✅ 1 × Period Swim Bottom
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Tie-Side Bikini Bottom
✅ 1 × Wet Bag
Choose your preferred print (based on availability).
✅ 1 × Organic Cotton Brief - Super
Soft, breathable, lightweight — perfect for post-swim comfort.
🔢 SIZE & FIT
Swim bottoms available in:
Ladies 6, 8, 10, 12, 14,16,18, 20
Organic cotton briefs available in standard sizes XXS–4XL.
Choose your usual underwear size for both briefs and swim. If in doubt = for underwear, go larger.
💡 HOW TO BUILD YOUR KIT
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Choose your Period Swim Bottom
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Pick your Wet Bag print
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Select your Organic Cotton Brief size
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Add to cart — discount applies automatically
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Free Gifts will stack at checkout
Care Instructions
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Rinse swimwear after each use
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Cold wash in washing bag
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Line dry in shade
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Do not bleach or tumble dry
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Do not wring swimwear
Shipping & Returns
Orders ship same or next business day from the Sunshine Coast.
Underwear & swim bottoms are final sale for hygiene reasons.
Full policy available on our Shipping & Returns page.
What's to love about our Summer Flow Kit — BFCM Exclusive (Save 30%)?
When your undies arrive, try them on over your regular, clean underwear before use to check the fit. Make sure to give them a wash before your first wear to improve the absorption performance.
Then to use the undies, simply wear them like you would with any of your other underwear.
How long you wear your underwear for will come down to personal preference and your flow. We recommend changing every 6-12 hours.
Washing period undies and period bikinis/ swimwear is simple and hassle-free.
They can be machine-washed (we recommend using a garment bag, cold water and liquid natural detergent), and then line-dried for best results.
We do recommend rinsing them well prior to popping them in the machine, however this isn't necessary.
Think your individual decisions won't make a difference?
Well, did you know more than 12 BILLION pads and tampons are thrown out every year worldwide? Let's break this down even further to see the impact you CAN make - the average woman alone uses 11,000 pads, tampons and panty liners in their lifetime. That’s a lot of landfill! It's time to make the switch to Eco Period, you won't look back.
IS IT YOUR FIRST TIME TRYING REUSABLE PERIOD CARE?
Once you start, you'll never go back to traditional single-use period care products again!
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Eco Period Australia underwear absorb your period.
Every pair is made with our signature technology that's odor-controlling, super-absorbent, and leak-resistant. This 4 layer technology works together to do it’s thing (aka keep you fresh and dry). Take a look at our How It Works page to learn more.
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Yes, our period underwear has been designed to be worn alone, with no tampons or pads required. If you wish to wear a menstrual eco cup as well, this can extend the wear time of your eco briefs.
Also the length of time you can wear each pair depends on your flow.
As a general rule, we recommend choosing heavy or super absorbency for your heavy flow days and moderate or light for your lighter days.
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This comes down to personal preference and your flow, however you can wear a pair of undies for as long as 24 hours. We find most of our customers like to change every 8-16 hours. There's no right or wrong here!
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Our range of period underwear range from Super > Light. Scroll down to check out our Absorbency Guide here to decide which level is right for you.
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Firstly, work out how many days of your cycle are heavy and moderate/light. Then, you can calculate the number of briefs you will need using this guide:
Heavy flow days:
- Within a 24 hour period, we'd recommend changing 2-3 times.
- Suggested change times - morning, midday (optional if your flow is heavy) and at the end of the day.
Moderate/light flow days:
- Within a 24 hour period, we'd recommend changing 1-2 times.
- Suggested change times - morning and at the end of the day.
So you can allow ample time for washing + drying, we suggest buying double the amount you calculate above, so you're never caught out without a clean pair to wear!
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If you use period cups or pads you might not need as many pairs of period underwear.
Browse our collection of eco-pads and menstrual cups to grow your eco-friendly period solutions.
If you're often on the move and wish to change your underwear, we recommend getting a wetbag for your used underwear to store them before you're able to wash them.
WHO WE ARE
Eco Period offers beautifully crafted, quality period garments that are made to last, and are just as good for your body as they are for the environment.
We are passionate about making a difference through our products and hope to help you transition (or continue) your journey towards zero waste, eco and organic period solutions.
SUPER
●●●●● 30-60ml
The lining is thicker and extends to the back waist seam, so it covers you for overnights.
HEAVY
●●●●○ 25-40ml
Choose Heavy absorbency if you have a heavy flow or for your heavy flow days or for moderate incontinence.. The lining extends to the back waist seam, so it covers you for overnights or when laying down on your side and back.
MODERATE/HEAVY
●●●○○ 20-30ml
Perfect to use if your flow is moderate, so think 3rd or 4th day of your period. Also for light to moderate incontinence leaks. These undies will also cover you at night as the leakproof lining extends up to the back waist seam (a thinner layer than the heavy absorbency).
MODERATE
●●○○○ 15-20ml
Choose Moderate absorbency for day-time wear, active wear and for when you just don't need that extra panel of protection up the back. Suitable for flows from 15-25 ml. The lining is generally a little thinner too, so does not feel bulky.
LIGHT
●○○○○ 10-15ml
If your flow is light, or you are using as a backup, choose light absorbency. This will provide a leakproof function and some absorbency as a backup.
