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.
2-Piece Period Swim Set
Black, Sage or Pink - Heavy Absorbency
Want simple style? Like colour choices? Looking for complete set? Want heavy protection?
We've got you covered.
This simple but stylish 2-piece Period Swim Set (Black, Sage or Pink) contains everything your daughter will need this summer at the beach, in the pool, or lazing by a beautiful river or creek. This set includes a pair of Knicked period swimmer bottoms AND a bikini top — the perfect swim set to get her through summer!
💖 What Makes It Different?
Unlike regular swim sets, our 2-Piece Set features:
✔ Choice of 3 colours for the bikini top (Black, Sage or Pink)
✔ Choice of bottoms (Original OR High-Waisted)
✔ Heavy absorbency period protection
✔ Adjustable strap bikini top
✔ Removable mini modesty cups
✔ Removable side ties on Original brief
✔ High-Waisted option has LeakStop
✔ Complete set ready for summer
That means everything you need in one simple, stylish set - with colour and bottom choices to suit your preference!
🏊♀️ Perfect For:
• Beach & pool days
• River & creek swimming
• Heavy flow protection
• Simple classic style
• Colour choice (Black, Sage, Pink)
• Customisable bottom choice
• Complete summer swim set
🌿 What's in the Set:
• Choice of our Heavy absorbency Original swim brief with removable side ties OR High-waisted swim brief with LeakStop
• Black, Sage or Pink swim top with adjustable straps & removable mini modesty cups
Please note: Knicked only manufacture the period swim bottoms, and we purchase the additional pieces separately, therefore sizing may be variable.
🌸 Designed for Summer Fun
Created by a mum, designed for real periods.
Our 2-Piece Set uses:
• Same technology as our heavy absorbency period underwear
• PLUS a waterproof layer
• Choice of Original OR High-Waisted bottoms
• Adjustable straps for perfect fit
• 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).
Model on the left is wearing High-waisted in size 10/12 and wears size 14/16 (ladies 10) in our original swim brief with side ties. Model on the right is wearing size Teen 12/14 (ladies 6/8)

* Please see our swim FAQs for more information.


Tracked postage is $9.95
Express postage is $14.50
Orders over $99 receive complimentary FREE REGULAR SHIPPING
Knicked will exchange item(s) that have not been washed, worn and are in AS NEW condition, we request you submit our Exchange Form within 14 days of receiving your product. Knicked will cover one new shipping cost as a gift to assist - please note: if purchased on sale or outside Australia item(s) can ONLY be returned for a gift voucher to repurchase a new size or style within 5yrs.
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.