Excellent product, fits true to size.
Bought these for my daughter, she loves them. Keeps her comfortable and prevents any leaks on her heaviest nights.
Great service and great product.
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 Welcome to Puberty! First Period Pack
Everything You Need for This Big Milestone
First period approaching? Just started menstruating? Want to make this milestone special?
We've got you covered.
Our Knicked Welcome to Puberty! First Period Pack is the perfect starter pack for girls entering this new chapter. With 3 pairs of period underwear PLUS thoughtful self-care gifts, this pack makes the transition to periods feel less scary and more empowering.
💖 What's Inside Your Pack?
Choose the perfect combination for your needs:
Option 1: Just Starting Puberty
✔ 2x Pre-Period/Light Absorbency undies (5mls each)
✔ 1x Heavy Absorbency undies (30mls)
✔ Perfect for girls just starting puberty
Option 2: Just Started Menstruating
✔ 2x Overnight/Heavy Absorbency undies (30mls each)
✔ 1x Pre-Period/Light Absorbency undies (5mls)
✔ Perfect for girls who've just started their period
PLUS Special Self-Care Gifts:
✔ 1x Pocket Heart (Rose Quartz healing crystal)
✔ 1x Hair Scrunchie (random colour - surprise!)
✔ 1x Self Care cute Stickers (6 mini stickers with affirming quotes)
✔ 1x Sweet treat (for those moments when only sweet will do)
✔ 1x Girls-Can-Do-Anything Bracelet
✔ 1x Silk Bag (perfect for storing period underwear & more)
That means complete protection PLUS thoughtful gifts to make this milestone feel special and empowering.
👍🏼 Perfect For:
• First period preparation
• Girls just starting puberty
• Girls who've just started menstruating
• Making periods feel less scary
• Thoughtful gifts for tweens
• Complete starter pack
🌿 Designed for This Special Milestone
Created by a mum, designed for real girls.
Our Welcome to Puberty Pack is:
• 3 pairs of period underwear
• Reusable & sustainable
• Mix of light & heavy absorbency
• Special self-care gifts included
• Made to make periods feel empowering
Because starting your period is a big deal — and it deserves to be celebrated with confidence and care.
Knicked period undies have always been and will continue to be FREE FROM NASTIES such as PUL'S (plastics) or PFAS (chemicals).
Amazing Value: Total pack value is $90 — starting at only $65.95!
* Free gifts may be substituted depending on availability

Click here to view the Knicked sizing chart.
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.
Excellent product, fits true to size.
Bought these for my daughter, she loves them. Keeps her comfortable and prevents any leaks on her heaviest nights.
Great service and great product.