Teen Period Swimwear

Eco Briefs - Absorbency
Eco Briefs - Collections
Eco Briefs - Colours
Eco Briefs - Styles
Eco Pads - Prints
Eco Pads - Sizes

Don’t let your period stop you from having fun in the water. With our range of leak resistant period swimwear for teens, you can hit the beach or the pool without fear of leaks, effortlessly.

Whatever your style, choose from comfy bikinis and one-pieces, tried and tested to keep you leak-free.

Period Swim Racerback Racing Swimsuit
Racerback Period Swimwear Australia Size Chart
Period Swim Racerback Competition Swimsuit
Racerback Period One Piece Swim Australia
Racerback Period One Piece Swim Australia
Racerback Period Swimsuit One Piece
Racerback Girls Period Swimwear One Piece
Racerback One Piece Period Swimsuit
Racerback One Piece Period Swimsuit

Racerback One Piece Period Swimsuit

Regular price $100.00 Sale price $70.00
Tax included. Shipping calculated at checkout.
or make 4 interest-free payments of $11.25 AUD fortnightly with:

60 day risk free trial for new customers

Swim without a care while swimming with our Racerback One-Piece Period Swimwear. No need for additional protection or tampons, just enjoy the water worry-free. Made with absorbent and waterproof materials and leak-proof technology. Plus, our eco-friendly design helps reduce landfill waste.  Designed for competition and squad swimmers and to hold up to 20 ml of period fluid. 

Girls and Women's sizes. Please refer to the flat lay chart on this product page for dimensions.  Check them against your other swimsuit to ensure you select the correct size*.  

  • X- Back and scoop neck
  • Straps Bar tack reinforcement at stress points
  • Fully Front Lined, with built in shelf bra and removable moulded breast cups.
  • UV protective and water repelling outer fabric.
  • Fabric: 75% Recycled Nylon, 25% Elastane.

*We can exchange sizes for unworn, as new items, but cannot offer refunds on period swimwear. 

Please contact us if you have any questions ( email: info@ecoperiod.com.au).

What is Period-proof swimwear? 

Period-proof swimwear looks similar to regular swimwear and has a built-in multilayer lining to absorb menstrual blood. 

Period-proof swimwear is specially designed for swimming during periods, incontinence or vaginal spotting. 

Period swimwear is also popular with competition swimmers, given they spend so much time in the pool.  Period swimwear helps them to focus on training or a swim meet without having to worry about leakage. 

Period-proof swimwear is also a great option for girls with irregular periods or who are entering into puberty. Periods can arrive unexpectedly, and period-proof swimwear can help protect against those unexpected moments while swimming.

How does Period swimwear work? 

Eco Period swimwear offer four layers of protection. The first is the outer swimwear fabric, which is water resistant to reduce water getting into the swimsuit.  The next layer is made of leakproof fabric to stop captured menstrual blood from leaking out. The middle layer of the swimsuit is designed to lock in and absorb menstrual blood. The top layer of the period swimwear that sits against the skin is made of moisture wicking mesh that dries quickly once out of the water. 

Eco period swimwear can absorb from 2 teaspoons to 6 teaspoons of menstrual or bladder fluid. For reference, a normal tampon is usually able to hold about 1 teaspoon (5 milliliters) of menstrual blood. 

Eco period swimsuits can be worn by itself on light to moderate period days or even on heavy days if you wash out or change your swimwear as needed.  This is why we sell some of our period swimmer bottoms in 2 packs, so you have an extra for heavy days.  We also recommend rinsing them out throughout the day if you are going to be wearing them all day.  This can allow you to wear them for an extended time (say if you are a swim teacher or at a race event, or swimming carnival).  You simply rinse out til the blood is mostly removed, wring and wear again.  And of course, wash properly at the end of the day.  We recommend natural liquid detergents and cold water for washing and cold water only for rinsing. 

Do I wear these with a tampon, cup or pad?

Eco briefs are a complete replacement for other leak management products. There is no need to use anything else in conjunction with them, even on your heaviest days, with our heavy and super absorbency briefs holding up to 60 ml.  If you do like to wear a menstrual eco cup, you can choose light or moderate absorbency underwear, to wear as a backup for when your cup overflows.  Refer to our Know Your Flow page, for more guidance. 

Eco pads are also a complete replacement for other period and lbl products, with 4 layer Eco-tech designed to provide absorbency up to 100 ml.

What size is right for me?

We recommend taking your normal underwear size. 

Do I need to wash them before wear?

Yes, we recommend washing your period underwear and eco pads before the first time you wear them to help prime the 4 layer eco technology. 

What does it feel like wearing them?

Our eco briefs feel just like regular underwear! The absorbent gusset was designed to be comfy and discreet, never bulky or heavy. Just choose your favourite style of underwear and you are good to go! 

Eco Pads are soft and comfortable and clip into your regular underwear to keep them in place.  They use ‘dry touch’ technology to keep you feeling dry, even with heavy flows.  Please monitor and if you start to feel ‘wetness’, please change your eco briefs or eco pads. 

To determine your size, there are two ways to check:

1. Measure your best fitting underwear or swimwear at home against the 'Half waist Flat Lay' measurements.  This is the dimension of the top of the waist band of your underwear, when they are lying flat.

2. Measure around your hips, so over your hip bones and check against the Hip measurements either below or on the specific size chart for your product.  

If there is a discrepancy between your hip measurements and your flat lay measurements with our size chart, go with the flat lay measurements, as they represent the actual underwear you are buying and will be more accurate.

Always refer to the product specific size chart if there is one available (found at the top of the product page above the size selections), otherwise, refer to this chart below. If in doubt, please message us on chat function or email info@ecoperiod.com.au and we can discuss your needs. 


How to measure

 To choose the right size, follow the tips below:

  • Use a flexible measuring tape for maximum accuracy.
  • Measure hip dimensions on bare skin or over thin, tight-fitting fabric.
  • For flat lay half waist measuring, take the measurement of the garment when unstretched, and be mindful or how stretchy the elastic is of your sample, as very stretchy elastics will be designed to stretch out, so give some allowance for that.






  • Free standard shipping on orders over $100
  • $8.50 shipping on orders under $100
  • $13.90 flat rate for express post.
  • Choose express post if you are in a hurry, express orders are prioritised for fulfillment and also get to you within 1-3 business days (or check Australia Post website for current delivery estimates).
  • Regular Post orders are delivered between 2-7 business days generally, within Australia. Some delays can be expected at times due to sales and holidays. 
  • Same business day dispatch on express post orders placed before 9am (except weekends and public holidays) Regular post orders may take 1-2 business days for fulfillment. 
  • Pre-order items will be shipped in 1-2 weeks or in accordance with product page.
  • Tracking details will be sent by email once shipped for trackable items.
  • We use Australia Post letter for small orders and Parcel post and Sendle.
  • International Shipping - Orders over $200 will be shipped free for most countries. Some are charged at $24.90 flat rate. Major countries (USA, EUR CAN) are charged $24.90 AUD for postage for orders under $200. New Zealand rate is $15.90 for orders over $170.
  • Any and all customs charges are the responsibility of the customer, including the cost to return it to Eco Period Australia when refused by the recipient at time of delivery.



  • We offer a 14 day return window on unworn garments. 60 day risk free trial applies to a single pair of underwear, not to a bundle, subject to conditions set out in our Returns policy.
  • No returns or refunds on yoni eggs, menstrual cups or kegel balls. 
  • Items marked as clearance or sale items cannot be returned for a refund. An exchange may be possible, at your cost for postage of exchange items.
  • Underwear/swimwear returned must have been tried on over the top of clean underwear; and not worn or washed; if this is not followed, we cannot not provide a credit/exchange.
  • A credit or exchange is provided upon receipt of your returned garment/s or receipt of notice that goods have been posted back to us.
  • Processing timeframes may vary; please allow up to ten business days.
  • We suggest sending your return/s with tracking so that you know when your parcel has arrived to us.
  • Contact us at info@ecoperiod.com.au if you would like to return something.