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Light Leakproof No-Show Boyshort

$25.00 USD

Buy 3+ Save 15%, Buy 5+ Save 20%

Absorbs about 1 regular tampon

Invisible under clothes

Perfect for daily wear

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

Color: Black

Size:

True to Size

Size:

Size and Fit Guide

Build Your 3-Pack

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

Light Leakproof No-Show Boyshort

Color: Black

Size:

Size:

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

Light Leakproof No-Show Boyshort

Color: Black

Size:

Size:

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

Light Leakproof No-Show Boyshort

Color: Black

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. 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.

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.

Rewards Members Earn 25 Points

Product Description

So thin, you’ll forget you’re wearing anything. This style has full bum and hip coverage. Our original leakproof technology offers a barely-there feel while absorbing about 1 regular tampon or pantyliner worth of liquid. Patented bonded edges help prevent against side leaks. These underwear feature our signature buttery soft fabric. No show construction is designed to be invisible under clothes, including workout leggings.

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

  • 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
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

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

4.6
Rated 4.6 out of 5 stars
Based on 7,236 reviews
Total 5 star reviews: 5.6k Total 4 star reviews: 933 Total 3 star reviews: 333 Total 2 star reviews: 170 Total 1 star reviews: 165
93%would recommend this product
FitRated 0.0 on a scale of minus 2 to 2
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
Ease of UseRated 4.7 on a scale of 1 to 5
7,236 reviews
  • Rated 5 out of 5 stars
    3 minutes ago
    Best ever

    I’ll never wear any other kind

    Deborah W.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    Coupe parfaite !!

    .

    Audrey-Anne J.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 days ago
    love them!!

    Exactly what I needed.

    I'm a total Knix user!!

    Anne F.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    5 Stars

    Love them.

    Diane
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    A pair of mine was split at the seam after only wearing once and they replaced it immediately. Their customer service is fantastic. These are the only underwear I wear now.

    jules
  • Rated 5 out of 5 stars
    3 weeks ago
    Amazing

    I’m only 40 but years of stress after two kids, the leaks has gotten bad. I thought initially from another brand and they were soooo frumpy. These are beautiful and so comfortable! I got Medium and I’m about a size 6.

    Jacki
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Very comfy and not frumpy like others.

    Jacki
  • Rated 5 out of 5 stars
    1 month ago
    Comfort and carefree

    Love these boyshorts so much, never going back to liners!

    Tessa J.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Boyshort

    Nice feel. Effective for light bladder leak

    Bonnie P.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Will be buying more

    I use this as backup on heavy flow days when wearing a tampon and it always does the job. I am a size small in regular underwear and the size small for these fits perfect. It’s great having peace of mind in heavy days!

    Katherine S.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 months ago
    Accurate sizing and comfortable

    I have tried several different kinds of leek proof panties, and I have found that these have been the best so far.

    Alisa M.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 months ago
    Boy short

    I love these! So comfortable.

    Sharon G.
    Verified Buyer

Your underwear questions, answered.