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60 Day risk-free trial

20% OFF

Swimwear Hi Waist Bikini Brief

Q: How does Modibodi period swimwear work?

Modibodi swimwear features a discreet two-layer lining. The inner layer is designed to absorb menstrual fluid (with super absorbency holding up to 50ml, equivalent to 10 tampons), while the outer layer is water-resistant, preventing external water from entering and ensuring leak-proof protection both in and out of the water. Learn how our built-in leak-proof lining absorbs fluid and keeps you protected in and out of the water .

Q: Can I swim on my period without using a tampon or pad?

Yes, Modibodi period swimwear is designed to be worn alone on light to super flow days, eliminating the need for additional products like tampons or pads.

Q: How much menstrual fluid can Modibodi swimwear absorb?

Depending on the style and absorbency level, Modibodi swimwear can hold between 10ml to 50ml of fluid, which is approximately 1–10 tampons' worth. Check our absorbency guide to see how much each style can hold.

Q: Will Modibodi swimwear feel heavy or bulky when wet?

No, the swimwear is designed to remain lightweight and discreet. The absorbent lining does not swell in water, and the water-resistant outer layer prevents water absorption, ensuring comfort and a sleek appearance.

Q: How do I care for my Modibodi swimwear?

After use, rinse the swimwear in cold water, then machine wash on a gentle, cold cycle. Avoid using fabric softeners or bleach, and hang to dry. Follow our full washing and care guide to keep your swimwear performing at its best.

$47.99 $59.99

20% Off For A Limited Time Only

or 4 interest-free payments of $11.99 AUD View Option

The perfect bottom to pair with our swimwear tops, mix and match your way for your most confident, comfy summer yet. Read More

Colour Black

Size

08/XS

10/S

12/M

14/L

16/XL

18/2XL

20/3XL

22/4XL

Absorbency Super

Absorbency Guide

Shipping

FREE LOCAL SHIPPING ON ORDERS

OVER $99 AUD

Standard Shipping on orders over $99 AUD: Free
Standard Shipping on orders less than $99 AUD: $9.95
Express shipping: $12

To find out more click here.

Returns

WE ALWAYS WANT YOU TO FEEL POSITIVE ABOUT YOUR MODIBODI EXPERIENCE, AND THAT'S WHY WE OFFER:

a one-off 60-day trial period for new customers who want to try selected Modibodi products for the first time; and
30 days returns (Excludes products marked as "Final Sale".

To find out more click 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.

Size and Fit

Liv S wears Modibodi size 14/L. If you are between sizes, we recommend sizing down, as the swimwear should be a snug fit.

Free shipping on orders over $99

We are proudly a B Corp Certified Company

Description

Flow: Super
Absorbency: 50 mls
Tampons Equivalent: Up to 10 tampons *
Perfect For: Medium to Heavy Days
Feels: Soft, Thin and Reliable

*(Based on 5ml tampon)

Boss your cycle in our Hi-Waist Bikini Brief. Crafted from soft, recycled fabric, it’s soft and smooth on skin with excellent stretch and shape retention. It’s also chlorine-resistant and absorbs up to 10 tampons, keeping you leak-free, comfy, and confident during the heaviest flows. Pair it with any of our swim tops and get set to make a splash, without ever leaving a mark.

Featuring our Super absorbency lining that absorbs up to 10 tampons worth in and out of the water on heavier days.

High waist
Wide waistband
Low leg
Moderate bottom coverage
Back is lined
Front is fully lined with absorbency gusset for optimum protection
Chlorine-resistant
Super absorbency (up to 10 tampons).
Soft and smooth next to skin
Crafted from soft, recycled fabric – durable with excellent stretch and shape retention
Made with our patented technology
Black-coloured lining controls odour and stops unwanted stains
Machine cold wash. Line dry. Do not bleach. Do not add softener. Do not tumble dry. Do not iron.

CARE:

Machine cold wash. Line dry. Do not bleach. Do not soak. Do not add softener. Do not tumble dry. Do not iron.

INGREDIENTS: Our specially designed materials ensure every item meets high standards. View more information here.

Fabrication

Main: 74% Recycled Nylon / 26% Elastane

Liner: 85% Recycled Nylon / 15% Elastane

Gusset: 100% Polyester

No One Does Leak-Proof Protection Like Us

We're patented for a reason. Independently lab tested and scientifically proven to keep you dry, fresh and odour controlled.

B Corp Business

We meet higher standards of social and environmental impact, transparency and accountability.

Wear, Wash, Reuse

We are on a zero-waste mission. Good-bye single use, hello reusable underwear!

Better Materials

Natural and recycled fabrics keep giving back, so they are part of our circular design.

SWIM

For protection from periods & light bladder leaks – in and out of the water.

Don’t let your period or pesky bladder keep you out of the water. Hit the pool or the beach without leaks thanks to our super slim and discreet patented swimwear technology.

01. Top Layer

Sporty mesh layer is fast drying, absorbs liquid – and locks it away. Even better helps to control odour and is backed with a breathable, waterproof layer.

02. Bottom Layer

The bottom layer is the outer fabric of your swimwear – recycled nylon - which is chlorine resistant, water repellent, and dries much faster than your regular swimwear.

Care Guide

BEFORE YOUR WEAR

Wash your Modibodi before wearing them for the first time! This will prime the fabric’s Modifier Technology™ in the gusset. This initial wash ensures that the fabric’s pores are open and ready to absorb moisture effectively.

GETTING RINSING

Rinse in cold water after use <30°. Do not soak, just rinse until the water runs clear. You can do this in the shower – we love this as it saves water and is super convenient.

COLD WASH ONLY

Cold wash (now or later – though it’s best not to leave your Modibodi’s wet for too long). Washing them in a delicates bag is even better.

HANG IT DRY

Ensure the product is entirely dry before wearing – this will ensure your underwear are fresh and ready to go. Hot Tip: Hold the fabric softener and avoid the dryer - this reduces the product’s function and can cause damage to the inner fabrics.

We Fear Not

the rules, the leaks or the unknown.

Got questions? We've got answers

How does Modibodi period swimwear work?

Modibodi swimwear features a discreet two-layer lining. The inner layer is designed to absorb menstrual fluid (with super absorbency holding up to 50ml, equivalent to 10 tampons), while the outer layer is water-resistant, preventing external water from entering and ensuring leak-proof protection both in and out of the water.

Learn how our built-in leak-proof lining absorbs fluid and keeps you protected in and out of the water.

Can I swim on my period without using a tampon or pad?

Yes, Modibodi period swimwear is designed to be worn alone on light to super flow days, eliminating the need for additional products like tampons or pads.

How much menstrual fluid can Modibodi swimwear absorb?

Depending on the style and absorbency level, Modibodi swimwear can hold between 10ml to 50ml of fluid, which is approximately 1–10 tampons' worth.
Check our absorbency guide to see how much each style can hold.

Will Modibodi swimwear feel heavy or bulky when wet?

No, the swimwear is designed to remain lightweight and discreet. The absorbent lining does not swell in water, and the water-resistant outer layer prevents water absorption, ensuring comfort and a sleek appearance.

How do I care for my Modibodi swimwear?

After use, rinse the swimwear in cold water, then machine wash on a gentle, cold cycle. Avoid using fabric softeners or bleach, and hang to dry.
Follow our full washing and care guide to keep your swimwear performing at its best.

We are inclusive

Empowering conversations about periods, incontinence, pregnancy, sweat, & more with our inclusive product range.

Circular Design

We prioritize design with renewable and recycled fabrics, such as Australian merino wool and  organic cotton.

Responsible

We work with trusted manufacturers, and continuously invest time and energy into nurturing our supply chain.

Size	Chest	Waist	Hip	Leg	Body Length	Gusset
4/XXXS	69-71 centimeters	54-56 centimeters	79-81 centimeters	34-36 centimeters	60-63 centimeters	7 centimeters
6/XXS	74-76 centimeters	59-61 centimeters	84-86 centimeters	36-38 centimeters	62-65 centimeters	7 centimeters
8/XS	79-81 centimeters	64-66 centimeters	89-91 centimeters	38-40 centimeters	64-67 centimeters	7 centimeters
10/S	84-86 centimeters	69-71 centimeters	94-96 centimeters	40-42 centimeters	66-69 centimeters	7 centimeters
12/M	89-91 centimeters	74-76 centimeters	99-101 centimeters	42-44 centimeters	68-71 centimeters	7.25 centimeters
14/L	94-96 centimeters	79-81 centimeters	104-106 centimeters	44-46 centimeters	70-73 centimeters	7.25 centimeters
16/XL	99-101 centimeters	84-86 centimeters	109-111 centimeters	46-48 centimeters	72-75 centimeters	7.25 centimeters
18/2XL	104-106 centimeters	89-91 centimeters	114-116 centimeters	48-50 centimeters	74-77 centimeters	7.5 centimeters
20/3XL	109-111 centimeters	94-96 centimeters	119-121 centimeters	50-52 centimeters	76-79 centimeters	7.5 centimeters
22/4XL	114-116 centimeters	99-101 centimeters	124-126 centimeters	52-54 centimeters	78-81 centimeters	7.5 centimeters
24/5XL	119-121 centimeters	104-106 centimeters	129-131 centimeters	54-56 centimeters	80-83 centimeters	7.75 centimeters
26/6XL	124-126 centimeters	109-111 centimeters	134-136 centimeters	56-58 centimeters	82-85 centimeters	7.75 centimeters