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.
Just wonderful period undies barley know you had them on I just love these
Perfect for my pre teen daughter
Great source of fun with print just wish it was a bit bigger
Was great
Could be a little bit bigger? As my daughter wears bike shorts with the knocked undies in case of leakage
This is the best wet bag so far perfect for the school bag and a funky design! Thank you for creating amazing products
Just love this little wet bag is now in permanent place in my bag for those unexpected times
My tween loves her waterproof bag (“period undies wet bag”). For now it’s an emergency kit with all the supplies she needs. Fits a surprising amount and it’s high quality with a great design! Highly recommend!
Great to chuck in my daughter's school bag with all the necessary items.
The colourful theme makes the bag look so fun, you wouldn’t even guess it is for period undies. Will be buying another one, because I went on holiday and used it as a little bag to put my phone, portable charger and earphones so they wouldn’t get wet in the rain. Definitely recommend.
This was the perfect purchase for my daughter to put her period undies discreetly in her school bag.
These waterproof bags make looking after used undies/swimmers hassle free, keeping them protected in-between hand rinsing and machine washing them. Their fun design keeps them girl-friendly and is a discreet little case in her school/swimming bag too. A big help!
I have purchased this for my 11 year old to keep in her school bag should the day arrive. She loves the designs and how it dosen't look like period supplies
Waterproof SOS Bag
So pleased with my purchase for my daughter. Handwritten note and extras inside the parcel were a pleasant surprise and could not be more happy with the quality of the products. Thank you!
This bag is so handy and cool. Easy to clean. My daughter loves the cool design!
The design is super cute and perfect for the pre teen. Dear daughter loves the fact it looks like a pencilcase so if it is ever spotted out of her bag she is not embarrassed. And that's a big thing for a 10 year old. For me, I love that it is easy to clean.
