Teen Leakproof Front-to-Back Liner Bikini
Absorbs about 2.5 super tampons
Soft cotton-modal fabric
Optimal overnight protection
Machine washable







Amarii (she/her) has 39" hips and is wearing a size L


Amarii (she/her) has 39" hips and is wearing a size L



Amarii (she/her) has 39" hips and is wearing a size L
Teen Leakproof Front-to-Back Liner Bikini
Absorbs about 2.5 super tampons
Soft cotton-modal fabric
Optimal overnight protection
Machine washable
Absorbency:
Moderate
Size and Fit Guide



Shipping
Shipping
Processing Timelines
Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order.
Delivery Time
For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.
Shipping Charges
Orders over $100* CAD = Free Shipping (2-6 business days)
Orders under $100* CAD = $12 CAD Shipping (1-3 business days)
Orders delivering to NWT, Nunavut and Yukon are subject to $20 delivery fee.
*After discounts, before shipping and taxes.

Returns
Returns
Free Returns
Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.
Return Policy
Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.
Sale & Last Call
Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
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Comfort-First Fit

Moderate Absorbency

Easy to Wash

Machine Washable

Fabric
🇨🇦 Free standard shipping over $100.
Eligible for exchange or store credit within 30 days of delivery. The item may be removed from its original packaging, washed, and worn to qualify.Zoom






How to Choose?
Essential
- • Everyday Wear
- • No leakproof protection
Heavy
- • heavy period days
- • overnight protection
- • light bladder leaks
Light
- • light period days
- • sweat
- • sweat and discharge
Moderate
- • moderate period days
- • light bladder leaks
- • sweat
Ultra
- • extra heavy period days
- • overnight protection
- • light bladder leaks
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- Rated 4 out of 5 stars3 weeks agoWow.
Yes, it works, yes, you can wash it in the machine and use dryer. Yuk it's 90 or more every day here for weeks, so actually gets too sweaty after 6 hours, of course I am not using A/C in my home...so probably not a problem for most Americans.
M S.Verified BuyerWas this helpful? - Rated 2 out of 5 stars10 months agoOdd fit
Same sizing as other models but fits very differently. Not as comfortable.
Dina W.Verified BuyerWas this helpful? - Rated 1 out of 5 stars11 months ago1 Star
Fits very small
WhitneyVerified BuyerWas this helpful? - Rated 5 out of 5 stars1 year agoEffective Style
Like fuller protection/coverage. Wish had more colors, as when first offered style. Fit very good.
Arthur A.Verified BuyerWas this helpful? - Rated 5 out of 5 stars1 year agoAmazing! The only period underwear you need!
I have been looking this for my daughter ever since she started her period. Regular period underwear is great but this is better! Even with regular underwear she had to wear a pad up the back and across the top at night time. Also, she loves to lounge around at home, and I had to constantly tell her to sit up so her period would stay in the area of the padding. This eliminates this problem. My only comment - which I think others have stated too - is more cheek coverage. Then, it would be perfect. This is just fine too for light day, heavy days, and all the days in between.
Laurie M.Verified BuyerWas this helpful? - Rated 3 out of 5 stars1 year agoNot for me, but if for you... maybe try 1 size up
The issue I keep running into with the full full coverage styles is that they'll be extremely tight in one area. This one for me was just too tight in the leg holes (although I do have pretty chonky thighs at the moment =/). There was just no give; however, the waist did fit okay this time (not like the Cotton Super Leakproof Boxer Brief I got a while back that were too too tight on my waist).
If you're a little thicker in the legs/waist area, I would recommend trying 1 size up if this is the style u want.
Crystal B.Verified BuyerWas this helpful? - Rated 5 out of 5 stars1 year agoGreat period underwear
My daughter loves these, and they made her feel more secure during her period. Thanks for making a great product!
Pamela S.Verified BuyerWas this helpful? - Rated 3 out of 5 stars1 year agoFront to back coverage leaks out leg opening
The idea of the front to back coverage is great, but because of the high cut leg openings they leak out anyway. Seems like just traded out one problem for another. Hip measurements are accurate when measured for corresponding teen knix sizing; waist is tight & leg openings gap from being high-cut style.
Evelyn T.Verified BuyerWas this helpful? - Rated 3 out of 5 stars1 year agoJust don’t fit right, still leak at leg openings
I normaly wear sizeXXL in overnight dream shirts; these are tight to begin with at waist, but relax after a wearing a couple times. I tried tried these because of the extended gusset protection, but they just don’t fit me right (and the adult panties like these also don’t fit me well). Knix does not give any waist measurements to go by on any of their panties, you only go by the hip measurement & I think that is where the problem is. The leg openings tend to be wider than their other panty styles & the waist is tight & doesn’t relax on this style, so they leak out at the leg openings even though they give a longer gusset coverage.
Evelyn T.Verified BuyerWas this helpful? - Rated 5 out of 5 stars1 year agoPanties
My great granddaughter loves them, because of the larger gusset. She is a stomach sleeper and a heavy bleeder
Linda T.Verified BuyerWas this helpful? - Rated 5 out of 5 stars1 year agoGood coverage
No worries about movement.
Lisa F.Verified BuyerWas this helpful? - Rated 5 out of 5 stars1 year agoLove these!
Was completely skeptical but my daughter LOVES them!!
Vicki K.Verified BuyerWas this helpful?