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Home / Teen Period Underwear / Teen Leakproof UltraThin No-Show Thong
New

Teen Leakproof UltraThin No-Show Thong

$25.00 CAD

Bundle & Save: 3 for $65
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Absorbs about 1-3 super tampons

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Invisible under clothes

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More absorbency without bulk

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Machine washable

| Pastel Wings
| Pastel Wings
| Pastel Wings
| Pastel Wings

Absorbency: Light

Color: Pastel Wings Limited Edition

Size:

True to Size

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*

Build Your 3-Pack

| Pastel Wings

Teen Leakproof UltraThin No-Show Thong

Color: Pastel Wings Limited Edition

Size:

Size:

| Pastel Wings

Teen Leakproof UltraThin No-Show Thong

Color: Pastel Wings Limited Edition

Size:

Size:

| Pastel Wings

Teen Leakproof UltraThin No-Show Thong

Color: Pastel Wings Limited Edition

Size:

Size:

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.
First Pair Risk Free for 30 Days

Leakproof Underwear, Risk Free

Returns & Exchanges

Leakproof Underwear, Risk Free
Trying leakproof underwear for the first time? Your first pair is completely risk free for 30 days. Wear them, wash them, and see how they work for your body. If they’re not right for you, we’ll refund your first pair. Prefer a different size or style? We also offer free exchanges.

How it works:

  • Risk free applies to leakproof underwear on your first order
  • Refund covers the item price (original shipping excluded)
  • Just email info@knix.com and we’ll take care of you

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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Product Description

The ultimate invisible backup for your most active days. The Teen Leakproof UltraThin No-Show Thong is designed to disappear under tight leggings, dance leotards, and athletic uniforms. Featuring a seamless, raw-cut finish, it provides a "zero visible panty lines" look while offering a safety net for light days or discharge. This ultra-thin period thong absorbs about 1 regular tampon’s worth of flow, making it the perfect low-profile solution for teens who refuse to let their period slow down their performance.

Comfort-First Fit

Thong silhouette sits lower on the hip with minimal bum coverage.

Worry-Free Protection

Our newest leakproof innovation provides more absorbency without the bulk. Patented 360 LeakSeal™ technology locks in leaks at every edge.

Light Absorbency

Absorbs about 1-3 regular tampons worth of liquid.

No More Panty Lines

Made from our signature buttery-soft fabric and designed to be invisible under clothes.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Pastel Wings
| Pastel Wings
| Pastel Wings
| Pastel Wings

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
FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

Absorbs about 1-3 regular tampons worth of liquid.

Soft Top Layer

Soft Top Layer

Gently wicks away moisture while keeping you feeling fresh and odor-free.

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4.8
Rated 4.8 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 3 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
ComfortRated 4.0 on a scale of 1 to 5
FitRated 1.0 on a scale of minus 2 to 2
EffectivenessRated 4.0 on a scale of 1 to 5
Ease of UseRated 4.0 on a scale of 1 to 5
Write a Review (Opens in a new window)
4 reviews
  • Rated 5 out of 5 stars
    1 month ago
    Excelente tanga periodo

    Excelente material, ajusta perfectamente, invisible debajo de tu ropa.

    Sandra M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Undies

    Fit perfectly great quality bought some from another online shop had to return them n they never responded so be careful order from here I wear a5-6 pants ordered med thong fit perfect thank you I’ll be ordering more

    Susan D.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Great product but size up

    These are a much better quality and more wearable than other brands. But do size up as recommended by other reviewers.

    Erin C.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    3 weeks ago
    GOOD

    not reallky my size, but does the job nicely!

    Evellyn S.
    Verified Buyer
    Was this helpful?

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