Your Bag

Your cart is empty

But you're full of potential..
Rewards Members Earn 0 Points

Suggestions

Top Picks

Revolution V-Neck Bra

$65.00 USD
10% off Bra & Underwear Sets*

Color: Warm Sand

Super Leakproof® Dream Boxer

$48.00 USD

Color: Plaid Limited Edition

Leakproof UltraThin No-Show High Rise

$32.00 USD
Mix & Match: 3+ for $25 each

Color: Warm Sand

WingWoman Contour Bra

$68.00 USD
10% off Bra & Underwear Sets*

Color: Dark Cherry Limited Edition

Home / Boyshort Underwear / Light Leakproof No-Show Boyshort
Best Seller

Light Leakproof No-Show Boyshort

$25.00 USD

Mix & Match: 3+ for $20 each
Checkmark

Absorbs about 1 regular tampon

Checkmark

Invisible under clothes

Checkmark

Perfect for daily wear

Checkmark

Machine washable

Sarah has 38.5” hips, and wearing KNIX M | Black

Sarah has 38.5” hips, and wearing KNIX M

| Black
Sarah has 38.5” hips, and wearing KNIX M | Black

Sarah has 38.5” hips, and wearing KNIX M

Sarah has 38.5” hips, and wearing KNIX M | Black

Sarah has 38.5” hips, and wearing KNIX M

| General
| General

Sarah has 38.5” hips, and wearing KNIX M

Absorbency: Light

Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Essential
Drop
Drop
Drop
Drop
Drop
No Absorbency
Heavy
Drop
Drop
Drop
Drop
Drop
about 4-7 super tampons

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

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. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.


Split Shipments

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

We are not able to ship to US territories (including Puerto Rico, U.S. Virgin Islands, Guam, Northern Mariana Islands and American Samoa) at this time.
Easy Exchanges 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.
Rewards Members Earn 25 Points

Comfort-First Fit

Boyshort silhouette with a mid-rise fit and extra hip and bum coverage.

Worry-Free Protection

Our original leakproof technology provides a barely noticeable feel. Patented bonded edges help prevent side leaks.

Light Absorbency

Absorbs 1 regular tampon worth of liquid—perfect for light flow days, sweat and discharge, and backup protection for heavy flow days.

No-Show Style

Made from our signature buttery soft fabric with a wide, comfortable waistband. Wear it on its own or under your favorite pajamas.

Easy to Wash

Machine washable just like regular underwear.

Zoom

Sarah has 38.5” hips, and wearing KNIX M | Black
| Black
Sarah has 38.5” hips, and wearing KNIX M | Black
Sarah has 38.5” hips, and wearing KNIX M | Black
| 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
PATENTED LEAKPROOF TECHNOLOGY

Built-in protection that feels like nothing at all

Our original Fresh Fix Technology® features a built-in absorbent liner absorbing about 1 regular tampon worth of liquid so you feel fresh and in-control.

Soft Top Layer

Soft Top Layer

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

Our Best-Selling Underwear

Shop All Arrow Right

Super Leakproof® Dream Team Kit

From 
$80.00 USD
$96.00
Save $16

Super Leakproof® Dream Short

$48.00 USD

Color: Dark Cherry Limited Edition

SuperPlus Leakproof® No-Show High Rise

$39.00 USD
Mix & Match: 3+ for $33 each

Color: Black

Leakproof UltraThin No-Show High Rise

$32.00 USD
Mix & Match: 3+ for $25 each

Color: Warm Sand

Light Leakproof No-Show Bikini

$25.00 USD
Mix & Match: 3+ for $20 each

Color: Warm Sand

Super Leakproof® Dream Boxer

$48.00 USD

Color: Plaid Limited Edition

Leakproof UltraThin No-Show French Cut

$27.00 USD
Mix & Match: 3+ for $25 each

Color: Black

Essential No-Show High Rise 5-Pack

$95.00 USD
$125.00
Save $30

Color: Cheetah Multi Limited Edition

4.6
Rated 4.6 out of 5 stars
Based on 7,211 reviews
Total 5 star reviews: 5.6k Total 4 star reviews: 930 Total 3 star reviews: 330 Total 2 star reviews: 169 Total 1 star reviews: 165
93%would recommend this product
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
Ease of UseRated 4.7 on a scale of 1 to 5
Write a Review (Opens in a new window)
7,211 reviews
  • Rated 5 out of 5 stars
    22 seconds ago
    Love them!!

    The material is so soft and silky feeling. Work very well at night.

    Angela M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    23 minutes ago
    No-Show Boyshort

    So comfortable

    Queenie N.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 days ago
    Excellent comfort

    True no show. I mainly bought them for sweat and light bladder leaks and they are perfect!

    Patricia R.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    No show

    The pale pink underwear is the nicest invisible colour I’ve ever found. A little brighter than a nude but not so much to show through light colored pants.

    Sara C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Got the job done

    Effective for light bladder leakage but the crotch area is a little stiff. Not uncomfortably so but enough to notice.

    carrie H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Boyshorts

    Fits perfectly

    Chantal B.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    2 weeks ago
    sizing is not the best

    I had to go down to small due to the large size for the leg openings. Even at that the openings around the leg are still to big. I still wear on occasion but would not be able to use consistently the way they are currently made.

    They also don't do much to help with absorbing sweat which was my first reason for purchasing the original pairs.

    Kathrine S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    No show boy short

    Good for daily wear

    Robin H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Lovely fit!!!

    Stephanie
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Best for wearing under work clothes

    Comfortable and don’t ride up or slide down. I have in many different colors.

    Anne B. T.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    3 weeks ago
    Size up!

    I'm a medium in most bottoms, including the Knix cotton boybrief and modal leggings. These were too tight, and I knew they'd be even tighter around my period when so many of us get a bit puffy. Traded them in for a large, which fit perfectly.

    Sizing aside, these feel pretty great on — they feel secure in place, don't ride up or slide down, and aren't too high or low rise (for my preference anyway). I think no-show is pretty much a myth unless you have zero body fat but the large size isn't too muffin-toppy on me.

    I'm not a big a fan of wearing synthetic undies all day but I thought these would be great as cup backup for workouts, or even just for particularly sweaty workouts on non-bleed days. Haven't put the leakproof fabric to any real test yet but will update if there's any disasters!

    Jessica G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Just perfect!

    Great fit and super comfortable. My favourite underwear. 👌

    Johanne D.
    Verified Buyer
    Was this helpful?