Do period underwear really prevent leaks?

Yes – when worn according to your flow level, Eco Period underwear offer excellent leak protection. They’re made with multiple layers of absorbent, moisture-locking fabric designed to keep you dry and confident. Key insight: Our leak-proof technology is trusted by thousands of Aussie women. • Multi-layered absorbent core locks in fluid • Moisture-wicking top layer keeps skin dry • Waterproof outer layer prevents leaks onto clothing. When worn correctly, our period underwear provide reliable protection for everyday life, including overnight use, travel, and busy days.

How much fluid can Eco Period underwear hold?

Each style is designed to suit a specific flow level – from light spotting to heavy flow days. You’ll find this info on every product page to help you choose what’s best for your needs. Key insight: Our heaviest styles can hold up to 5 tampons’ worth of fluid. • Light: 1–2 tampons’ worth • Moderate: 2–3 tampons’ worth • Heavy/Super: 4–5 tampons’ worth Choose the right absorbency level for your cycle and feel worry-free all day long.

Can I wear one pair of period underwear all day?

Yes, most people wear our period underwear comfortably for 8–12 hours without needing to change. On heavier days, you might prefer to bring a spare or use a backup product for extra reassurance. Key insight: Designed for day-to-night comfort, most customers don’t need to change during the day. • Wear for up to 12 hours depending on your flow • Great for school, work, or travel • Perfect for teens who want an easy, worry-free option. Make sure to choose the right absorbency for the day of your cycle and you’re good to go!

Will I feel wet or uncomfortable wearing period undies?

Not at all. Our underwear are made with breathable, moisture-wicking fabrics that pull fluid away from the body and into the core layers, keeping you dry and fresh. Key insight: Advanced fabric tech means you stay dry and comfortable, even on your heaviest day. • Top layer feels dry to the touch • Absorbent core locks in fluid and prevents bunching • No pads, rustling, or bulky feeling. You’ll feel just like you’re wearing regular underwear – but with leak protection built in.

Are period underwear any good for overnight use?

Yes – they’re perfect for overnight wear! Many of our customers tell us they finally sleep soundly without stressing about leaks or stained sheets. Key insight: Heavy and super absorbency styles are ideal for overnight flow. • Choose Super Bikini or Swim Shorts for overnight protection • Soft waistbands and comfy cuts for sleep • No pads, shifting, or waking up to change. Wake up worry-free with breathable, high-capacity underwear you can trust.

Do period undies smell?

Nope! When washed properly, our period underwear stay fresh and odour-free. The fabric is naturally antimicrobial and breathable to prevent bacterial build-up. Key insight: Smell is reduced through breathable layers and good washing habits. • Change every 8–12 hours based on flow • Rinse in cold water after use • Wash with your regular laundry (no fabric softener). Proper care keeps your underwear fresh and long-lasting.

How do I choose the right style of period underwear for my flow?

We make it easy to match the right product to your cycle. Each product page lists the absorbency level and best-use scenario. Key insight: Matching your style to your flow = best performance. • Light: G-String, Invisi Bikini • Moderate: Orgaknix High Waist, Boyleg • Heavy: Super Bikini, Full Brief • Super: Swimwear Shorts, Overnight styles Still not sure? Contact our team at info@ecoperiod.com.au – we’re happy to help.

Can I wear period undies for exercise or swimming?

Yes! Our active range and period swimwear are designed for movement, sweat, and water. They’re discreet, leak-proof, and stay in place while you move. Key insight: Our swimwear and activewear styles give you total freedom to move without fear. • Gym, dance, and sports-friendly cuts • Swimwear holds 1–2 tampons’ worth • No shifting or bunching while you move. Perfect for active teens and sporty women who want to feel secure.

What if I have a very heavy flow or clots? Can I wear period undies?

If your flow is on the heavier side or includes clots, our Super Bikini and High Waist styles and our Swim Shorts offer maximum absorbency and coverage. Many women with PCOS, endometriosis, or postpartum bleeding trust our brand. Key insight: Our super styles are designed for the toughest days. • Holds up to 5 tampons’ worth of fluid • High-waisted styles prevent leaks at the sides • Pair with a cloth pad or cup on extra heavy days You’re not alone – we’ve got you covered.

What if my purchase of period undies don’t fit or I’m unsure of sizing?

We understand – sizing can be tricky! That’s why we offer easy size exchanges and a detailed size chart. You can also message us for help before you order. Key insight: We offer no-fuss exchanges to help you find your perfect fit. • Check our size guide before purchase • DM or email us for help picking the right fit • Easy exchange process if needed. We’re here to make sure you love your undies – no stress.

Cycle Saver Pack| 4 pack Period Underwear - Underwear

FREE SHIPPING OVER $99

Cycle Saver Pack| 4 Pack Orgaknix Period Underwear

$99.00~~$140.00~~

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ECO-CONSCIOUS PRODUCTION

Four pairs. Your whole cycle. One bundle.

The Cycle Saver Pack gives you 4 pairs of Orgaknix period underwear from our signature organic cotton collection — mix and match Bikini, Boyleg, and High Waist styles in Black and/or Beige to suit every day of your cycle.

Trusted protection whether you're travelling, exercising, or at work. Comfortable, confident, and worry-free.

Why you'll love it:

4 pairs of Orgaknix period underwear — mix styles and absorbencies across your cycle
Certified organic cotton skin-contact layer — the purest fabric option next to your skin
4-layer EcoTech technology — absorbent, leak-proof, moisture-wicking
Available in Black and/or Beige (note: girls sizes and ladies sizes 6–12 are Black only)
PFAS-free and chemical-free throughout

Organic cotton | 4-layer protection | PFAS-free | Mix styles | Whole-cycle coverage

Eco Pad Cycle Starter Pack (9 Pads + Wet Bag) - Feminine Pads & Protectors

Size Guide

Every body is different. Here's everything you need to find the right size and fit for you.

Super Bikini Brief High Waist Racerback Swimwear Swim Shorts

Step one

How to measure

Two quick ways to find your size before you look at the charts.

Measure your high hip

Wrap a soft tape measure around your hip bones — the area where our low-rise styles sit. This is usually higher than your fullest hip measurement.

Half waist flat lay

Lay your underwear or swim bottoms flat and measure across the top of the waistband, unstretched. This is the most accurate way to match sizing to a garment you already own.

Fit tip For the best fit, use both measurements. If you are between sizes or prefer a more relaxed fit, we recommend sizing up.

Step two

How each style fits

Same size, different feel. Here's what to expect from each cut.

Super Bikini

Low rise

Low rise fit Stretch side panels Soft and forgiving Light to medium coverage

FirmerSofter

Most forgiving fit

Brief

Mid rise

Mid rise fit More coverage at back Full stretch waistband More structured feel

FirmerSofter

More structured feel

Swimwear

Bikinis and one pieces

Firm, supportive fit Made from swim fabric Secure in the water Feels firmer than underwear

FirmerSofter

Firm, secure fit

Swim Shorts

Board short style

Relaxed, easy fit More coverage Made from swim fabric Designed for comfort

FirmerSofter

Relaxed, comfortable fit

High Waist

High rise

High rise fit Maximum coverage Smooth, supportive waistband Most structured feel

FirmerSofter

Maximum coverage and support

Racerback

One piece swimsuit

Chlorine-resistant fabric Firm, secure fit Designed for serious swimmers Stays secure in water

FirmerSofter

Firmest fit — built for laps

🏊 Swimwear fabric is designed to hold its shape in the water, so it will feel firmer than everyday underwear. If you prefer a more relaxed swim fit, size up.

Step three

Find your size

Select your range below and match your measurement to the chart.

📏

Quick note on fit before you look at the charts

Between sizes? Go snug for true to size or size up for a more relaxed fit. There's no wrong answer. Most customers find that sizing up feels more comfortable for everyday wear.

Teen sizing is based on body measurements, not age. Find the high hip measurement that matches and that's your size.

Girls Size	High Hip (cm)
8–10	60–66 cm
10–12	66–72 cm
12–14	72–78 cm
14–16	78–86 cm
16–18	86–94 cm

If your child is between sizes or prefers a more relaxed fit, sizing up is often more comfortable.

Measure around your high hip — the area over your hip bones where our low-rise styles sit. Sizing is based on this measurement, not the fullest part of the hip.

AU Size	High Hip (cm)	Half Waist Flat Lay (cm) ①
6	75–80 cm	30 cm
8	80–86 cm	32 cm
10	86–92 cm	34 cm
12	92–98 cm	36 cm
14	98–104 cm	38 cm
16	104–110 cm	40 cm
18	110–116 cm	42 cm
20	116–122 cm	44 cm
22	122–130 cm	46 cm
24	130–138 cm	48 cm

① Half waist flat lay: Lay your underwear flat and measure straight across the waistband, unstretched. A size 12 measures 34 cm flat, which equals approximately 68 cm around your body.

Important: These measurements are based on the high hip (hip bones), not the fullest part of the hips. If you're curvier through the hips or prefer a more relaxed fit, we recommend sizing up.

Period swimwear is sized to fit snugly in the water. Measure your high hip and match it to the chart. If you prefer a more relaxed swim fit, size up.

AU Size	High Hip (cm)	Half Waist Flat Lay (cm)
6	75–80 cm	31 cm
8	80–85 cm	33 cm
10	85–90 cm	35 cm
12	90–95 cm	37 cm
14	95–100 cm	39 cm
16	100–105 cm	41 cm
18	105–110 cm	43 cm
20	110–115 cm	45 cm

Swimwear fits more firmly than underwear and is designed to stay secure in the water. These measurements are based on the high hip. If you are between sizes or prefer a more relaxed fit, we recommend sizing up.

🌿

Every body is different — and so is every style.

Things that can affect fit: rise (low, mid, high waist), fabric type (cotton vs swim), personal comfort preference (firm vs relaxed).

You want a snug fitStay true to size

You want a relaxed fitSize up one

Still not sure? We're here to help.

Chat with us or send an email and we'll help you find the right size. No question is too small.

Email us at info@ecoperiod.com.au

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100% AUSTRALIAN OWNED

We're a business run by women, for women, based in the beautiful Hinterlands of Queensland's Sunshine Coast.

DESIGNED TO LAST

We are dedicated to providing a high quality product. We back our product quality so highly, that we will replace any faulty underwear if it doesn't last for at least 6 months.

SUSTAINABLE AT OUR CORE

From fabric and garment production, to our day to day operation we are consistently working towards minimising our environmental footprint.

WE GIVE BACK

We're passionate about giving back to those in need. That's why we donate products and 5% of our profits to charities supporting women, homelessness and environmental causes.

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.

GET TO KNOW US

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Cycle Saver Pack| 4 Pack Orgaknix Period Underwear

100% AUSTRALIAN OWNED

DESIGNED TO LAST

SUSTAINABLE AT OUR CORE

WE GIVE BACK