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Home / Bikini Underwear / Essential No-Show Bikini
Best Seller

Essential No-Show Bikini

$22.00 USD

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

Essential for non-leak days

Invisible under clothes

Always fresh, quick-dry liner

Machine washable

| Meadows
| Meadows
| Meadows
| Meadows
| General

Absorbency: Essential

Essential
No Absorbency
Light
about 1-3 regular tampons
Moderate
about 2-4 super tampons
Heavy
about 4-7 super tampons
Ultra
about 7-11 super tampons

Color: Meadows Limited Edition

Size:

True to Size

•

Size:

Size and Fit Guide

Build Your 3-Pack

Essential No-Show Bikini

Color: Meadows Limited Edition

Size:

Size:

Essential No-Show Bikini

Color: Meadows Limited Edition

Size:

Size:

Essential No-Show Bikini

Color: Meadows 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. 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

Essential Underwear

Returns & Exchanges

Within 30 days of delivery you can exchange for another size, style, or store credit. We're unable to provide refunds on underwear. If you ordered multiple pairs, please open, wash, and wear one pair only before initiating an exchange.

Still have questions? View our full policy here.
Rewards Members Earn 22 Points

Product Description

You can count on these seamless bottoms for top-notch comfort, without worrying about pantylines. And thanks to its quick dry liner, you’ll feel comfy & fresh all day long. This underwear does not protect against leaks.

Comfort-First Fit

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

Essentials Redefined

Designed for daily comfort when you don't need absorbent protection. The carbon-cotton top layer keeps you feeling fresh throughout the day.

No-Show Style

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

Zoom

| Meadows
| Meadows
| Meadows
| Meadows
| 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

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How to wash

Knix underwear is 100% reusable and machine washable, just like your regular undies. 

  • Rinse

    • Not required. But for best results, you can rinse your leakproof with cold water in the tub or sink before washing.

  • Wash

    • Machine wash on a cold, gentle cycle with mild detergent.

  • Dry

    • For their longest life, air drying is best. Hang or lay flat to dry.

  • Avoid

    • Fabric softeners, bleach, ironing, or heat from the dryer.

    4.6
    Rated 4.6 out of 5 stars
    Based on 2,768 reviews
    Total 5 star reviews: 2.1k Total 4 star reviews: 361 Total 3 star reviews: 160 Total 2 star reviews: 69 Total 1 star reviews: 71
    What our customers are saying
    Customers say these bikini underwear are extremely comfortable and feel like wearing nothing. They appreciate the soft, stretchy material and seamless construction that eliminates panty lines under clothing. Many find them perfect for everyday wear and note they stay in place without riding up. The variety pack offers good value with attractive colors and patterns. Some mention the fit runs small initially but stretches out after a few wears. Common feedback includes praise for the no-show design under dresses and fitted clothing. A few customers note durability concerns with seams separating over time, and some find certain styles show more than expected or have sizing inconsistencies between different cuts.
    91%would recommend these products
    ComfortRated 4.7 on a scale of 1 to 5
    SizingRated -0.1 on a scale of minus 2 to 2
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    2,768 reviews
    • Rated 5 out of 5 stars
      4 minutes ago
      No-show bikini 5 pack

      The fit is perfect and the fabric is extremely comfortable. Highly recommended

      Amanda c.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini 5-Pack
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    • Rated 5 out of 5 stars
      Yesterday
      Simply the best

      I would rate these underwear a 10 if I could.

      Cathy M.
      Verified Buyer
      Reviewing
      POS - Essential No-Show Bikini
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    • Rated 3 out of 5 stars
      4 days ago
      Sous vêtements

      Ne couvre pas bien les fesses

      Linda D.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini
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    • Rated 5 out of 5 stars
      4 days ago
      comfortable and breathy

      very comfortable and breathy!

      hh
      Verified Buyer
      Reviewing
      Essential No-Show Bikini 5-Pack
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    • Rated 1 out of 5 stars
      1 week ago
      Trop petite

      Pourtant j’ai fait plusieurs achats chez Knix. Autres modèles sans problème…

      Céline G.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini
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    • Rated 5 out of 5 stars
      1 week ago
      Perfect fit.

      Really like the essentials bikinis. Perfect.

      Melanie L.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini
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    • Rated 4 out of 5 stars
      2 weeks ago
      Cute and comfy!

      The only reason I give this 4 stars is because of sizing. I ordered a M, but would be more comfortable in a L. However, the Dream Boxers I got in a L and need a M. I based these purchases on the size charts. Knowing the proper sizes I need now, I would definitely order again!

      Alyson N.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini
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    • Rated 1 out of 5 stars
      2 weeks ago
      Size chart is wrong

      I measured my hips according to the instructions three times (38.5"), so I figured the M (39-41") should be safe (I normally wear a size 6 and the M is supposed to fit 8-10). Wrong. They are so tight around both my thigh and my tummy that they cut in. If I'm wearing something remotely form-fitting, you can see the cut/crease lines and it is super unflattering (not to mention uncomfortable). This is so disappointing. I'm not sure what advice I can offer to others looking to buy since the information available to help make a decision is just incorrect.

      Valerie J.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini 5-Pack
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    • Rated 5 out of 5 stars
      2 weeks ago
      My favourite

      These are so comfortable! My favourite style of knix. True to size

      Stephanie T.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini
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    • Rated 5 out of 5 stars
      3 weeks ago
      Awesome

      fit well

      wdawd
      Reviewing
      Essential No-Show Bikini
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    • Rated 4 out of 5 stars
      3 weeks ago
      Decent everyday underwear

      These are a typical everyday underwear with a silky feeling. They pair with many of Knix's bras for perfect pairs. I do prefer the boyshort cut to the bikini cut in this particular style for a little more bum coverage and an added layer of comfort.

      Kelly E.
      Verified Buyer
      Reviewing
      POS - Essential No-Show Bikini
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    • Rated 4 out of 5 stars
      1 month ago
      love it

      I love how they fit

      Meagan L.
      Verified Buyer
      Reviewing
      Essential No-Show Bikini 5-Pack
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