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

How Does Knicked Swim Work?

Teen Period Swimwear 4-piece Black/Blue Zebra Set

Size: Teen 16/18 (ladies size 12)

6 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 8 reviews
75%
(6)
13%
(1)
13%
(1)
0%
(0)
0%
(0)
L
Loukia R.
Loved it!

Wore the bottoms for 10 days straight at the beach and I absolutely loved them’ They held up super well and made me feel secure. The top was a little big, wish it was adjustable around the underbust or able to select alternating sizes but otherwise amazing and super cute!

L
Lisa K.
Incredible! Fantastic! Highly recommend

Thank you! Honestly, thank you!
I purchased the 4 piece swimwear set that included the heavy period swim briefs for my daughter and I can honestly say that I am SO happy I did. Apart from the set being beautiful, comfortable and without a trace that they are anything other than normal swim briefs, they 100% work!!
My Daughter although still young (12) suffers a very heavy flow between days 2 and 4 of her cycle. Being summer holidays my daughter and her friends planned a day out at the water park only to wake up the day before going with her period, meaning that yep... day 1 of heavy flow was going to hit right at the same time. We had the swim briefs but had not tested them yet so both my daughter and I were very nervous. Turns out we had absolutely nothing to worry about! She spent 9 hours at the water park with no embarrassing moments! She took herself to the bathrooms throughout the day to rinse her briefs and keep on swimming. It was amazing. My daughter even said how relaxed she was and how her anxiety had gone away. Thank you so much!
(**Note: we did notice some light transfer from swim briefs and towel when she sat down, but we solved that problem with a dark coloured beach towel).

A
Amber N.
Great

Really happy with our purchase, they work well and my teen can now continue swimming without worrying

A
Amber

Pant sizing was a lot smaller than the rest of the swimsuit, did not fit

J
Jude L.
Stylish and functional

I highly recommend Knicked. Great bundle deals and swimwear that gives my daughter the confidence to do her thing when she has her period.

Customer Reviews

Based on 8 reviews
75%
(6)
13%
(1)
13%
(1)
0%
(0)
0%
(0)
L
Loukia R.
Loved it!

Wore the bottoms for 10 days straight at the beach and I absolutely loved them’ They held up super well and made me feel secure. The top was a little big, wish it was adjustable around the underbust or able to select alternating sizes but otherwise amazing and super cute!

L
Lisa K.
Incredible! Fantastic! Highly recommend

Thank you! Honestly, thank you!
I purchased the 4 piece swimwear set that included the heavy period swim briefs for my daughter and I can honestly say that I am SO happy I did. Apart from the set being beautiful, comfortable and without a trace that they are anything other than normal swim briefs, they 100% work!!
My Daughter although still young (12) suffers a very heavy flow between days 2 and 4 of her cycle. Being summer holidays my daughter and her friends planned a day out at the water park only to wake up the day before going with her period, meaning that yep... day 1 of heavy flow was going to hit right at the same time. We had the swim briefs but had not tested them yet so both my daughter and I were very nervous. Turns out we had absolutely nothing to worry about! She spent 9 hours at the water park with no embarrassing moments! She took herself to the bathrooms throughout the day to rinse her briefs and keep on swimming. It was amazing. My daughter even said how relaxed she was and how her anxiety had gone away. Thank you so much!
(**Note: we did notice some light transfer from swim briefs and towel when she sat down, but we solved that problem with a dark coloured beach towel).

A
Amber N.
Great

Really happy with our purchase, they work well and my teen can now continue swimming without worrying

A
Amber

Pant sizing was a lot smaller than the rest of the swimsuit, did not fit

J
Jude L.
Stylish and functional

I highly recommend Knicked. Great bundle deals and swimwear that gives my daughter the confidence to do her thing when she has her period.

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