Excellent product, fits true to size.
Bought these for my daughter, she loves them. Keeps her comfortable and prevents any leaks on her heaviest nights.
Great service and great product.
How to make your daughter's first period EASY and FUN!CLICK HERE TO READ.
Welcome to Knicked, Welcome to Puberty and Periods SHOP HERE
Terms & Policies
Please see each product page, for individual sizing.
As a general rule, please choose the same size for our period undies and period swimwear as your child's regular underwear size.
Our period underwear is designed here using Australian Child/Youth underwear guidelines. It's important to note that child sizing, also crosses over into women's sizing at our 12/14, so we have also shown this on our sizing charts (on each individual product page) to assist.
We also understand purchasing online can make judging sizing difficult and everyone has a different body shape (literally hundreds of waist & hip combinations) so we have created guides on each product page to help you choose the best fit for each product, or feel free to email our helpful team at theteam@knicked.com.au with waist & hip measurements so we can assist further.
To measure against existing underwear: use the flat lay measurement (side seam to side seam on the waistband) to compare with their current underwear.
Don't panic if you do find you've ordered the wrong size, KNICKED will happily exchange sizing and also cover the postal costs to reship (once per order) as long as underwear has been tried on over clean underwear and returned in AS NEW condition (not washed/worn free of lint/hair/marks), and packaging in original condition.
Please click here for our Exchange/Refund Forms & Guidelines to organise an exchange.
*NO EXCHANGES and NO REFUNDS on these clearance products, so please choose carefully! *discontinued style or the last one in a size.
Knicked Racerback Period Swimsuit
Discontinued Style - Limited Sizing Available
Looking for a great deal? Need period swimwear? Want one-piece coverage? Limited sizes available?
We've got you covered.
Our Knicked Period Racerback 1-Piece Swimsuit allows girls to NEVER miss out on the fun when it comes to the water. No standing on the sidelines, we've got you covered! No extra period product is required, our racerback will keep you safe from leaks*
⚠️ CLEARANCE ITEM - ALL SALES ARE FINAL
Please note limited sizing as these are discontinued stock - NO EXCHANGES OR RETURNS WILL BE ACCEPTED
💖 What Makes It Different?
Unlike regular one-piece swimsuits, our Racerback features:
✔ Heavy absorbency period protection
✔ Racerback design
✔ Removable modesty cups
✔ Thin waterproof layer prevents leaks
✔ Quick-drying outer material
✔ No extra period product required*
✔ CLEARANCE PRICING - Save $40!
That means total protection EVERY DAY of your period, in and out of the water — at an amazing clearance price!
🏊♀️ Perfect For:
• Swim squad & swimming carnivals
• School camps
• Beach & pool days
• Creek & river swimming
• One-piece coverage
• Budget-friendly period protection
🌿 Designed for Active Swimmers
Created by a mum, designed for real periods.
Our Racerback Swimsuit uses:
• Same technology as our heavy absorbency period underwear
• PLUS a thin waterproof layer
• Removable modesty cups
• Made to keep you protected in and out of water
Because Knicked Swimwear allows girls to NEVER miss out on the fun when it comes to the water.
Knicked period undies have always been and will continue to be FREE FROM NASTIES such as PUL'S (plastics) or PFAS (chemicals).

* Please see our swim FAQs for more information.

Our featured teen Model wears a ladies size 10 in clothing and prefers size 14/16 in our swim range - her measurements are: Waist - 78cm & Hips - 100cm. Our other model is wearing a size 12/14 (Ladies 8) her measurements are: Waist - 74cm & Hips 90cm.
Tracked postage is $9.95
Express postage is $14.50
Orders over $99 receive complimentary FREE REGULAR SHIPPING
ALL SALES ARE FINAL - NO EXCHANGES OR RETURNS WILL BE ACCEPTED
Excellent product, fits true to size.
Bought these for my daughter, she loves them. Keeps her comfortable and prevents any leaks on her heaviest nights.
Great service and great product.