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.
Knicked Front Zip Period Surfsuit
Full Coverage with LeakSTOP Technology
Surfing? Water skiing? Prefer full body coverage? Or sun & wind protection? Looking for all-in-one period protection?
We've got you covered.
Our Surfsuit is the first of its kind offering both body coverage, protection from sun, wind AND periods using our new LEAKSTOP Technology which we created to STOP leaking over the gusset when out of the water soaking up some rays. White towel protection!
💖 What Makes It Different?
Unlike regular surfsuits, our Period Surfsuit features:
✔ NEW LeakSTOP Technology (stops leaks around leg holes)
✔ All-in-one full body coverage
✔ Front zip for easy on/off
✔ Heavy absorbency period protection
✔ Anti-pilling material
✔ Chlorine resistant & SPF50+
✔ Sun & wind protection
✔ No extra period product required*
That means total protection EVERY DAY of your period, in and out of the water - even when lounging on white towels!
🏊♀️ Perfect For:
• Surfing & water skiing
• Swim squad & swimming carnivals
• School camps
• Beach & pool days
• Creek & river swimming
• Full body coverage
• Sun & wind protection
🌿 Designed for Active Water Sports
Created by a mum, designed for real periods.
Our Front Zip Surfsuit uses:
• Same technology as our heavy absorbency period underwear
• PLUS an extra waterproof layer
• PLUS NEW LeakSTOP technology around leg holes
• Front zip for easy changing
• 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 check our SIZING chart, as these are a fitted garment and we recommend upsizing if in doubt.

*Please see our swim FAQs for more information.

Our featured teen Model wears a ladies size 6/8 in clothing and is shown here in our TEEN size 12/14 - her measurements are: Waist - 74cm & Hips - 90cm Our 2nd teen Model is a ladies size 10 and wearing the size 14/16 Surfsuit.
Please note you'll need to measure your child's LENGTH in order to choose the correct size. You can also SIZE-UP if your child is tall, or has a long torso.
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.
Bought these for my daughter, as I liked how they covered her shoulders and weren’t high cut. She said they were comfy to wear.
Your customer service is amazing- and I really appreciate all of the work that goes into making your products. I absolutely love this swimsuit and I am always really impressed and pleased with it. 10/10 comfort, leak-proofing, and style. Your company is amazing and I’m so happy that this stuff exists 💖😁
My daughter loved her swimsuit last year. Now she grew out of it. I just had to buy her another one and it’s great coverage for when she got her period during the summertime
Love these swim suits. Definitely purchasing another one soon
Amazing! So comfortable
THANK YOU KNICKED, your products are awesome!! If I could give you 10 stars I would! NO LEAKS and she wore the Surfsuit and swim briefs everyday of her cycle while we were away plus these looks so good on, she received lots of lovely comments from other holiday makers and we caught her more than once checking herself out in mirrors (teen life)
Simple and effective, great for a fussy teenager!
My 11year old daughter loves swimming and with these fantastic bathers she can continue swimming even when on her period. She said they are really comfortable.
My daughter absolutely loves her surf suit, the cut is very flattering on her, covers her shoulders and has a modest cut to cover everything at the bottom. Highly recommend 😀
Wonderful customer service, promptly answered a few questions about it. Swimwear was a wonderful quality and very comfy for daughter. She felt super confident to be having options to swim!!
This is an amazing product that helps me get involved in water activities even when I’m on my period. Would definitely recommend!!
These swimmers are the best!! My teen daughter can swim knowing there is no leaks with her period. They fit so well and the fabric is amazing!!
I bought the swimsuit for my teen and she is so happy that she is able to swim any time of the month! No leaks or dramas, which is exactly what we wanted!
ANONYMOUS
Excellent first purchase. Period swimwear is really high quality, fits great and works perfectly. I’m really happy with the purchase and will be buying more of your products in future.
This teen period surfsuit is fantastic! I'd found it hard to find anything effective and also comfortable for my 12 yo to use for school activities when she has her period (given things like tampons are not right for her at this age). This surfsuit was just perfect! She is rather fussy and also has sensory concerns but she loved the surfsuit and said it worked perfectly (even on a heavy day she said when she got out of the suit and wrung it out, there was still no leakage)! It gave her confidence and made her comfortable. It's also simple but stylish. The product also arrived very quickly.
Very happy with this purchase!
My daughter loves these and you cannot tell at all that they are period swimmers.
Fabulous swimmers, lovely shape and gave my daughter confidence
My teen LOVES this swimsuit, amazing value as paid more for another brand which caused embarrassment on the first wear. These work on her heaviest days so she can surf & swim without worry. Knicked was amazing as needed urgently for water based school camp and they arrived within 2 days. Now all her friends want one too as no one knew it was period swimwear.