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Last Call

Teen Light Leakproof No-Show Bikini 2-Pack - Last Call

$22.00 CAD

$44.00

50% off

Absorbs about 1 regular tampon

Invisible under clothes

Ideal for everyday wear

Machine washable

Color: Cosmo/Raspberry Limited Edition

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.

Last Call Return Policy

Sale & Last Call

Our Sale Policy

Here's how returns and exchanges work for sale items.

  • Items discounted 30% or less are eligible for a size exchange or store credit.
  • Items discounted above 30% are final sale. No refunds, store credits, or exchanges.
  • Not sure where your item lands? Chat with us and we'll check for you

Still have questions? View our full policy here.

Rewards Members Earn 22 Points

Comfort-First Fit

Bikini silhouette with a classic mid-rise fit, medium hip and bum coverage.

Light Absorbency

Absorbs 1 regular tampon worth of liquid—perfect for moderate period days, light bladder leaks, and sweat. The carbon cotton gusset top layer wicks away moisture from your skin.

No-Show Style

Made from our signature buttery-soft PerformaStretch® fabric, it appears invisible under clothing.

Easy to Wash

Machine washable, just like your regular underwear.

Zoom

How to Choose?

Essential

  • Days you don’t need leak protection. Everyday freshness and moisture wicking.
  • tsp
    0 tsp

Heavy

  • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
  • 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

  • Daily freshness. For sweat, discharge, period spotting, or backup protection.
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

  • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
  • 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

  • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
  • 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
4.5
Rated 4.5 out of 5 stars
Based on 7,151 reviews
Reviews Summary
Customers say these underwear are extremely comfortable and feel like wearing nothing at all. Many appreciate the confidence they provide for light period days, unexpected leaks, and as backup protection. Users frequently mention the no-show design works well under tight clothing without visible lines. Common feedback includes sizing running small, with many recommending sizing up for better fit. Several reviews note the absorbent area could be longer in front for better coverage. While most praise the comfort and effectiveness for light flow, some experienced leaking issues. The fabric is described as soft and high-quality, though a few mention breathability concerns and rigid seams.
91%would recommend these products
ComfortRated 4.6 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
EffectivenessRated 4.6 on a scale of 1 to 5
Keywords
Keywords
Rating
Ratings
Height
Height
Usual Teen Pant Size
Usual Teen Pant Size
How do you use your Leakproof?
How do you use your Leakproof?
7,151 reviews
  • Rated 5 out of 5 stars
    Yesterday
    Best ever

    Love love love! The fit is perfect. It’s true to size.

    KL
    Krissy L.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini
  • Rated 5 out of 5 stars
    3 days ago
    My go-to underwear

    I've been buying these since 2021 and that won't change anytime soon. They are great.

    LB
    Lauren B.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini Midnight / S
  • Rated 5 out of 5 stars
    3 days ago
    Comfiest Period Ever

    I’ve been wearing period underwear from The Period Company for years, but I was due for new pairs. However, I dreaded shopping for ones. I have trouble finding clothes in general (I’m 4’11” and roughly 105 pounds). Knix made it easy! I purchased their XS in light and moderate just to try, but they were a little too tight. The exchange process was literally the click of a button, no major hoops to jump through. The S was a bit snug at first, but it molded to my body as I wore it. By the end of the day they were easily the comfiest pair of period underwear I’ve ever owned. I use a disc + period underwear as backup on my heaviest days, so I initially used the light on my first day and the moderates for backup the next couple days. The light coverage was a bit too light, so I’ll have to rethink exactly what I need for what stage of my cycle. But no worries—they were comfortable enough I knew I wanted to stick with Knix, so I just ordered the next absorbency level. Clean up was a cinch as well—I just squeezed out the gusset under cool water, put a little enzymatic cleaner on it, and threw it in with the wash, then allowed it to air dry.

    LB
    Lauren B.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini
  • Rated 5 out of 5 stars
    1 week ago
    Great birthday surprise

    Been shopping at Knix for years. Love their underwear.

    CS
    Courtney S.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini Rose Water / L
  • Rated 5 out of 5 stars
    1 week ago
    Great!

    Love these! Feel great, look great under my clothes. I usually wear these on the last day of my period confidently.

    SH
    Sandra H.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini - Last Call Dune / L
  • Rated 5 out of 5 stars
    1 week ago
    Confort total

    Belles couleurs

    MC
    Marie-Josee C.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini Rose Water / L
  • Rated 5 out of 5 stars
    2 weeks ago
    Trust the size chart

    Teen daughter feels less nervous about period surprises. We went by the size chart measurements and the smalls fit her great.

    EJ
    Elizabeth J.
    Verified Buyer
    Reviewing
    Teen Light Leakproof No-Show Bikini
  • Rated 5 out of 5 stars
    2 weeks ago
    Best Undies Ever

    I have tried every brand on the market and these are by far 100% the absolute best comfortable easy to wear don’t ride up just fantastic!

    LA
    Laurie A. M.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini
  • Rated 5 out of 5 stars
    3 weeks ago
    Awesome

    I was a little skeptical but these feel great one. You don't even notice a difference.

    They need to add more colours.

    WS
    Wendy S.
    Verified Buyer
    Reviewing
    POS - Light Leakproof No-Show Bikini (ZSkus) Black / M
  • Rated 5 out of 5 stars
    3 weeks ago
    Teen leakproof awesome

    Really pleased with these for the young one. She is really enjoying them. She's not home or I might have asked if we could do a photo.

    ES
    Eli S.
    Verified Buyer
    Reviewing
    Teen Light Leakproof No-Show Bikini 3-Pack - Last Call
  • Rated 5 out of 5 stars
    3 weeks ago
    Ms

    I got this product as a present for my granddaughter,

    She hasn’t told me how she liked the product but she accepted them.

    I have found that all Knix products that i have purchased so far have been of good quality quality

    JG
    Jane G.
    Verified Buyer
    Reviewing
    POS - Light Leakproof No-Show Bikini (ZSkus) Black / XS
  • Rated 5 out of 5 stars
    1 month ago
    The best - get these!

    This light leakproof is my favorite for every day wear. They do run small so order one size up. But on the other hand, if they feel tight at first, know that they do get larger over time. I used to always order medium but this time I went with large. I think I will stick with large moving forward. I’m so glad I found these because they are very comfortable. It’s the only brand I wear. I weigh 135 and I’m 5’2”. I use them for light leaking, a just in case. Better safe than sorry!

    DR
    Dana R.
    Verified Buyer
    Reviewing
    Light Leakproof No-Show Bikini

Your questions, answered.