BUY 5 + GET 1 FREE SITE WIDE - Add all 6 items to cart

BUY 5 + GET 1 FREE SITE WIDE - Add all 6 items to cart

🎃 50% off Halloween Sale

Search Login
0 Cart
Search Login
0 Cart
Search
0 Cart

Shop Knicked

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

More Info

Terms & Policies

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

How Does Knicked Swim Work?

💀 SPINE-TINGLING SAVINGS

🎃 50% OFF Modal & Active (Heavy or Extra Heavy) underwear plus Dance Diva II

⏰ 2 Days Only : Friday & Saturday - Discount will show at checkout (excludes bundles) 

🩷 Australia's No.1 period brand made for Tweens & Teens. Underwear, Dancewear, Swimwear and more, designed to fit their bodies. 🩷

Free Shipping over $99 | $9.95 Flat Rate Australia-Wide | Same Day Dispatch before Midday, Mon to Fri

Shop by Collection

PRE-PERIOD/LIGHT UNDERWEAR
HEAVY ABSORBENCY UNDERWEAR
DANCE
PERIOD SWIMWEAR
BUNDLE & SAVE
charity socks for white ribbon violence towards women
KNICKED-ACCESSORIES

Let customers speak for us

from 1418 reviews

Love this one, very comfortable.

Anonymous

These are comfortable and work great! I’m 5’7” and about 140 and the 16/18 fit well.

Shannon

After ordering, items are always received in the mail within a week. Instructions assist teen to understand how to use ordered item, she loved the lollies that were also included. Thanks for making life for girls so much easier...

Nancy W.

Fantastic! Teen confidently wears her Hybrid Period Undies under any of her favourite swimwear. The undies are not visible and sit just like a second skin, even on a heavy day she is safe and comfortable to be physically active in the water.

Nancy W.

Really really love these! My daughter wore them this morning under her tri suit for the selection race. Barely detectable even if you are looking for them. I only bought two pairs am gonna now order a heap more. So so good.

Janette B.

These safe period knicks designed specifically for dancers have been nothing short of a life changer for my dancer! The quality and fit are both fantastic—I am so grateful that these exist!

Megan H.

Seem to be great quality

Anonymous

Lovely fast service, arrived very fast, look forward to buying more

Kaitie P.

My daughter loves them.
Now we can rest easy if she is dancing look forward to more purchases

Kaitie P.

Just so grateful for what you have created. Those ultra shorts are a game changer. Thanks for what you do!

Anonymous

Just brilliant! Agree with others that the absorbent coverage going down the insides of the legs are an absolute GAME-CHANGER 🙌 🙏 I was so sick of washing my sheets constantly despite wearing multiple period undies and shorts. But this has been bulletproof, not a a single leak. I can’t tell you how grateful I am. About to buy another four pairs!

Anonymous

The first shorts/undies that my daughter feels confident in to wear all day to school. The lining down the leg is a game changer!

Anonymous

Easy to order, received the order in a couple of days. Fast and efficient, great variety.

Nancy W.

Teen loves the water, these swimmers are perfect for Nippers, the adjustable back works well, the swimmers are comfortable and fit well, she is a tall girl and needs the length the adjustable back allows.

Nancy W.

the sizing was perfect

Ma

View our Knicked Period Undies & Swimwear range

Knicked Swim Collection

Teen & Tween Original Period Swim Brief - Heavy Absorbency
$39.95 AUD
Teen Self-Tie Period Swim Bikini - Heavy Absorbency with StopLeak
$35.00 AUD
BFFs | Bestie Flow Friend | 2-in-1 Hybrid Period Undies | Under Swimwear~Under Dancewear~Under Anything
$33.95 AUD
Child 8/10 / Beige Child 8/10 / Black
Adult & Teen High-Waisted Period Swim Brief - LeakSTOP (Sizes 6-20)
$39.95 AUD
Teen & Tween Adjustable Racerback Period Swimsuit - LeakSTOP Technology
$79.00 AUD
Sale
Teen & Tween Front Zip Period Surfsuit - LeakSTOP Technology
from $49.95 AUD $79.95 AUD
Sale
CLEARANCE: Teen & Tween Racerback Period Swimsuit - Discontinued Style
$17.95 AUD $69.00 AUD
Teen Reversible Floral Period Swim Bikini - Self-Tie with StopLeak
Sold Out
XS-S with Bikini Top / Blue XS-S with Bikini Top / Pink
Hibiscus Hero ~ 3 piece period proof zip front long sleeve period swim set ~ heavy protection
$75.00 AUD
Child 10/12 / Black
Wildflower Wave-Maker ~ 3 piece period proof swim set ~ heavy protection
$75.00 AUD
Teen 12/14 / Black
Neon Beat Bikini ~ 3 piece period proof period swim set ~ heavy protection
$75.00 AUD
Teen 12/14 / Black
Teen Tropical Hibiscus Period Swim Set - 3 Pieces with Rashie & Shorts
$79.00 AUD
Teen Pearl Detail Period Swim Set - Limited Leopard Print Edition 2-Piece
$65.00 AUD
Teen 12/14 (Adult 6/8) with original swim brief / Cheater Print with pearl
Teen Onyx 3 Piece Period Swim Set
$69.95 AUD
Teen 12/14 (Adult 6/8) with original swim brief / Black
Teen Midnight Paisley Period Swim Set - 3 Pieces
$69.95 AUD
Teen Rainbow Period Swim Set - 2 Pieces with Detailed Back
$69.00 AUD
Child 10 with original swim brief / Black/Rainbow
Sale
Teen Summer Floral Period Swim Set - 3 Pieces with Criss-Cross
$69.95 AUD
Teen 12/14 (Adult 6/8) with original swim brief / Multi
Teen Period Swimwear Hibiscus set in either pink or blue
$69.00 AUD
Teen 12/14 (Adult 8) with original swim brief / Blue Teen 12/14 (Adult 8) with original swim brief / Pink

Dance Diva ~ The Original!

Sale
Tween & Teen OG Dance Diva Period Underwear - Leak-Proof & Leotard-Safe
$25.95 AUD $28.95 AUD
Dance Diva II Period Underwear - Ultra Heavy for Tweens & Teens
$24.95 AUD
BFFs | Bestie Flow Friend | 2-in-1 Hybrid Period Undies | Under Swimwear~Under Dancewear~Under Anything
$33.95 AUD
Child 8/10 / Beige Child 8/10 / Black
Dance & Play Period Underwear - Tweens, Teens & Adults Heavy Absorbency
$23.00 AUD
Sale
CLEARANCE: Teen & Tween Dance Period Underwear - Black High-Cut Heavy Absorbency
$13.50 AUD $23.95 AUD
Sale
CLEARANCE: Teen & Adult Dance Diva Period Underwear - Seamless Beige
$9.95 AUD $29.50 AUD
Sale
CLEARANCE: Teen High Cut Dance & Yoga Period Underwear
$9.00 AUD $25.00 AUD

Heavy Absorbency Range

Teen & Tween Organic Modal Period Underwear - Super Soft Hipster (Sizes 8-18)
$23.00 AUD
Teen & Tween Active Stretch Period Underwear - Heavy Absorbency 25mls
$23.00 AUD
Sale
CLEARANCE: Teen & Tween FlowerPower Period Underwear - Limited Edition Heavy Absorbency
$15.00 AUD $23.00 AUD
Dance & Play Period Underwear - Tweens, Teens & Adults Heavy Absorbency
$23.00 AUD
BFFs | Bestie Flow Friend | 2-in-1 Hybrid Period Undies | Under Swimwear~Under Dancewear~Under Anything
$33.95 AUD
Child 8/10 / Beige Child 8/10 / Black
DreamGuard™ Sleep Shorts ~ 5 way Ultra Heavy Period Protection ~ Bamboo
$33.00 AUD
Eversafe Bamboo 360° Extra/Ultra Heavy Flow Protection~ Full Front Gusset Protection
$24.95 AUD
Teen & Tween Active Stretch Period Underwear - Extra Heavy Absorbency 50mls
$24.95 AUD
Teen & Adult UltraGuard Boyleg Period Shorts - Super Heavy with Pockets (Sizes Child 10 - Adult 22)
$29.95 AUD
Teen & Tween Boyleg Period Underwear with Pockets - Heavy Absorbency
$25.00 AUD

Pre-Period/Light Range

Knicked Pre-Period/Light Undies for Girls in Active Stretch
Knicked Pre-Period/Light Undies for Girls in Active Stretch
Tween Pre-Period & First Period Underwear - Light Absorbency Active Stretch
$19.95 AUD
Knicked Pre-Period/Light Undies for Girls in Modal
Knicked Pre-Period/Light Undies for Girls in Modal
Tween Pre-Period & First Period Underwear - Light Absorbency Eco Modal Hipster
$19.95 AUD
get ready for your first period pack, puberty and menstruation
get ready for your first period pack, puberty and menstruation
Welcome to puberty! Get Ready For Your First Period Pack
from $65.95 AUD

Bundle & Save $$

Sale
Heavy Absorbency Bundle Period Undies
Heavy Absorbency Bundle Period Undies
Heavy Absorbency Bundle Period Undies
$128.00 AUD $169.60 AUD
get ready for your first period pack, puberty and menstruation
get ready for your first period pack, puberty and menstruation
Welcome to puberty! Get Ready For Your First Period Pack
from $65.95 AUD
Sale
Pre-period bundle. 5x light flow, 2x heavy flow, 1x pair is free, 1x free gift.
Pre-period bundle. 5x light flow, 2x heavy flow, 1x pair is free, 1x free gift.
Puberty & Beyond! Light Absorbency Bundle Period Undies
from $107.00 AUD $147.65 AUD

Knicked Accessories

Period Undies Wash Bag
Sold Out
Period Undies & Swim Wet Bag
$9.95 AUD
Sale
MiniTENS+ Machine for Period/Menstrual Pain
$99.00 AUD $150.00 AUD
Mauve Aqua
Sale
MiniTENS+ Replacement Pads
$29.95 AUD $39.95 AUD
Mauve Aqua
Sale
Soothe & Go: Cordless Wearable Heat & Massage Period Pain Relief
$36.00 AUD $39.95 AUD
Pink White Purple
Beach/Pool Luxe Zip Up Hoodie with Paisley design
$45.00 AUD
Pocket Hug Heart ~ Rose Quartz
$5.95 AUD
Kindness Socks ~ Pay-it-forward
Sold Out
Sold Out
Tween & Teen PMS Month Magic Roll-On ~ Aromatherapy
Sold Out
Good Vibes Only ~ Pay-it-forward Mum & Me Socks
$9.95 AUD
Sale
Removable Mirror/Wall Quote Sticker - Various Designs
$5.95 AUD $9.95 AUD

Latest on the blog

Knicked period underwear graphic with a question mark and a model jumping in black underwear

Why Knicked Period Underwear Actually Works

  • October 16, 2026
  • 9 min read
Read more
Knicked Dance Diva period underwear for tweens and teens, designed to be invisible under leotards and dance costumes

What Do Dancers Wear When They Have Their Period?

  • September 22, 2026
  • 9 min read
Read more
Mum and daughter talking about periods and period underwear for school

Will She Be Okay at School? A Mum's Guide to Period Underwear for the School Day

  • August 03, 2026
  • 6 min read
Read more
Period poverty in Australia — how to help women and girls access menstrual hygiene products

Period Poverty in Australia: What It Is and How You Can Help

  • July 17, 2026
  • 9 min read
Read more

About Knicked

Hi, I'm Caro, and back in 2018 my daughter was approaching the end of Yr 5 and had just started puberty. We packed a small purse with spare knickers and a pad for that “just in case it happens” moment, but this little SOS pack still wouldn’t stop an embarrassing “oh no” situation, and only helped with the afterwards.

Worldwide, girls are experiencing a first period at a younger age than ever before and this can cause distress and embarrassment for those still in their primary years or early high school ...

Read More

Search