Why it's important you only wear BREATHABLE period underwear.

How Does Knicked Swim Work?

Teen Period Swimwear 4-piece Island Set

Size: Teen 16/18 (Adult 12/14)

5 items left

Size chart
Knicked Tween & Teen Period Underwear Size Guide

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. 

Reviews

Customer Reviews

Based on 1 review
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K
Keryn
Teen swimwear

My daughter picked these out with me after her first period. What could have been an intimidating time has been seamless and she’ is certainly feeling herself in these swimmers. I wish they were around when I was a teen!

Customer Reviews

Based on 1 review
100%
(1)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
K
Keryn
Teen swimwear

My daughter picked these out with me after her first period. What could have been an intimidating time has been seamless and she’ is certainly feeling herself in these swimmers. I wish they were around when I was a teen!

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