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

How Does Knicked Swim Work?

Period Undies Wash Bag

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

  • 5 stars: 23 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
N
Natalie G. (Melbourne, VIC)

Excellent bag with multiple uses

A
Anonymous (Perth, WA)

perfect size

K
Kristy

Good

J
Jayne B. (Sydney, NSW)
Super Cute !

This is a great wash bag - the dark colour is perfect for the period undies.
A bigger size for multiple times would be great too :)

P
PJ (Sydney, NSW)
Cute and discreet

My daughter loves the shape, cute design and the fact that this wash bag is black not white mesh! She hangs it in the bathroom to throw her period undies in then takes it straight to the laundry when she has three in it. Thank you for helping me to help her feel independent and in control during her period!

R
Rebecca E.M. (Sanford, FL)
This is it.

I have a figure skater that needs period underwear that don't show under tight costumes and this is the answer!

J
Jessica O.

Amazing I love them

A
A.C. (Perth, WA)
Less stress for leakage days

These undies bags are awesome, not only for bather bottoms but period undies too... daughter is over the moon with now being able to discreetly sort undies without the boys being nosey

H
Hannah S. (Sydney Olympic Park, NSW)
great wash bag

excellent for washing all undergarments

R
Rebecca

👍🏻

S
Samantha L. (Sydney, NSW)
Perfect

Perfect for my daughter- made her first time so much easier and they are quality undies easy to wash using the wash bag. Nice and discreet.

S
Stacey G. (Perth, WA)
Love this

Thoroughly recommend, excellent quality and a bit of fun :)

T
Tiffany G. (Brisbane, QLD)
Impressive, good sized wash bag

The wash bag has been a great investment, keeping undies protected while washing. Lovely fun design too. Great quality. Highly recommend.

M
Megan O. (Coffs Harbour, NSW)

Such a great purchase for my daughter to organise herself

K
Kristy S. (Adelaide, SA)
Period Undies Wash Bag

I purchased 2 of the Period Undies Wash Bags. They are a great size and and have a cute design on the front. I have one for the shower & one for the laundry.

J
Jessica D.p. (Mount Colah, NSW)
Comfort and Trust

These undies are just amazing! Talk about body positivity!! With knicked undies my daughter has the confidence to dance on her period, which she didn’t use to. She was too young for tampons and we didn’t want her to be using them at such a young age, but pads are just so bulky. These undies are a game changer, I wish they were around when i was younger, but more so, they’re actually designed for young bodies which is just incredible. It’s also a very modest design, suitable for under any outfit. We use the sport ones regularly as she is very active, but the dance ones are great for under Leo’s and we’re perfect even under competition outfits, including swan lakes white tutu!! 😵 .. also I’m told they are extremely comfy!

B
Beckie L. (Sydney, NSW)

These knickers have been the security my daughter needs.
Service has been great, it’s been a pleasure to order through knicked.
Can highly recommend.

D
Dion P. (Perth, WA)
Daughter loves them

The sizing chart worked a treat, they are super comfortable and will be ordering her some bathers next. I’m super happy there are these on the market to make my little girl confident and even better...an Australian business.
Thank you 👍❤️

S
Sharon F. (Sydney, NSW)
SUPER CUTE & MUST HAVE

This wash bag is not only cute but a life saver - my tween keeps it in her bathroom and after rinsing pops her undies straight into the bag (which easily holds 4/5 pairs) and then when full pops it in the washing machine.. so easy and as she shares a bathroom means no undies just sitting around.

K
Katrina B.
Very satisfied customer

My daughter is extremely happy with the underwear. She would always get chaff during her period because she would only use pads, but now with knicked that doesn’t happen. She is also a very heavy bleeder but has never had any leaks.

J
Joanne P. (Perth, WA)
Awesome security

Gives my 9yo confidence that when her first one starts she’s covered.

H
Hayley T. (Parramatta, NSW)

Great thank you. My daughter loves them and the wash bag is so cute!

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