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Home / Shop All Teen / Teen Leakproof Front-to-Back Liner Bikini
KnixTeen

Teen Leakproof Front-to-Back Liner Bikini

$40.00 CAD

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Absorbs about 2.5 super tampons

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Soft cotton-modal fabric

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Optimal overnight protection

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Machine washable

Amarii (she/her) has 39

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

| General
Amarii (she/her) has 39

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

| General
| General
| General

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

Absorbency: Moderate
Drop
Drop
Drop
Drop
Drop

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*
Free Shipping on orders $100+

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.
Easy Returns within 30 Days

Returns

Returns

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.

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.
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Comfort-First Fit

The classic mid-rise fit provides medium hip and bum coverage.

Moderate Absorbency

The quick-dry, extended liner absorbs approximately 2.5 super tampons worth of liquid.

Easy to Wash

Machine washable just like regular underwear.

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Amarii (she/her) has 39
| General
Amarii (she/her) has 39
| General
| General
| General

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • tsp
    about 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 2-3 menstrual cups

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4.4
Rated 4.4 out of 5 stars
Based on 48 reviews
Total 5 star reviews: 34 Total 4 star reviews: 4 Total 3 star reviews: 6 Total 2 star reviews: 2 Total 1 star reviews: 2
79%would recommend these products
ComfortRated 4.5 on a scale of 1 to 5
FitRated 0.3 on a scale of minus 2 to 2
EffectivenessRated 4.4 on a scale of 1 to 5
Ease of UseRated 3.7 on a scale of 1 to 5
Write a Review (Opens in a new window)
48 reviews
  • Rated 5 out of 5 stars
    3 months ago
    Best ones so far

    I prefer the front to back coverage and wish this was standard. Please bring these back in stock in all sizes so I can order more for my teen!

    Sharon
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Effective Style

    Like fuller protection/coverage. Wish had more colors, as when first offered style. Fit very good.

    Arthur A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Amazing! 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 Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Great 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 Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Panties

    My great granddaughter loves them, because of the larger gusset. She is a stomach sleeper and a heavy bleeder

    Linda T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Good coverage

    No worries about movement.

    Lisa F.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Love these!

    Was completely skeptical but my daughter LOVES them!!

    Vicki K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 years ago
    Best coverage EVER!

    Of my 35 plus years of having to “deal” with my monthly “womanhood”, these are the first pair of underwear that gives me full confidence in knowing that I am FULLY covered and no leakage. Thank you for coming up with this awesome design and in Cotton To boot!!! Looooove these and hope to see more colours and designs in the future!

    Amy R.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 years ago
    So far so good

    My daughter used this pair twice towards the end of her cycle last month, but so far so good. She really liked how they felt while she wore them and under her jeans while at school, which is what really matters, isn't it! :-)

    Tracy H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 years ago
    5 Stars

    So incredibly comfortable! I’m only using them for light days, so I don’t know how they stand up to a full period, but I adore them.

    Anonymous
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 years ago
    Trustworthy coverage

    I bought these for my 11 yr old granddaughter. She says they are comfy and she doesn’t have to worry about leaking when wearing them.

    Kimberly G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 years ago
    Great Cover

    Such good coverage.

    Less worry!

    Lisa F.
    Verified Buyer
    Was this helpful?