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Home / Bikini Underwear / Light Leakproof No-Show Bikini

Light Leakproof No-Show Bikini

$25.00 USD

Mix & Match: 3+ for $20 each
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Absorbs about 1 regular tampon

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Invisible under clothes

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Perfect for daily wear

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Machine washable

| Warm Sand
| Warm Sand
| Warm Sand
| Warm Sand
| General
| General
| General

Absorbency: Light

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

Color: Warm Sand

Size:

True to Size

•

Size:

Size and Fit Guide

Free Shipping on orders $100+

Shipping

Shipping
Processing Time

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* USD = Free standard Shipping (4-8 business days)**
Expedited = $4.99 USD (3-6 business days)**

Orders under $100* USD = $7.99 USD Standard Shipping (4-8 days)**
Expedited = $9.99 USD (3-6 business days)**

*After discounts, before shipping and taxes. Processing times not included in estimates.
**Military Addresses Excluded. Standard Military Address Shipping = $10.00 USD (est. varies per location)
Easy Exchanges within 30 Days

Returns

Returns

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.

Sale & Last Call

Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
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"...the most comfortable period underwear I've ever tried."

- Good Housekeeping

Comfort-First Fit

Bikini silhouette with a classic mid-rise fit, medium 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

Buttery-soft and smooth fabric gives a seamless look and feel. Disappears under clothes, even leggings.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Warm Sand
| Warm Sand
| Warm Sand
| Warm Sand
| General
| 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.

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4.5
Rated 4.5 out of 5 stars
Based on 6,181 reviews
Total 5 star reviews: 4.6k Total 4 star reviews: 859 Total 3 star reviews: 348 Total 2 star reviews: 182 Total 1 star reviews: 186
91%would recommend this product
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
Ease of UseRated 4.6 on a scale of 1 to 5
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6,181 reviews
  • Rated 5 out of 5 stars
    3 minutes ago
    The best ☆☆☆☆☆

    These are the perfect underwear for every day. I'm not worried about a slight bladder leak with these on. They're my go to every day of the week. Knix is my only choice!! I won't buy anywhere else :)

    Catharina J.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 hours ago
    Light Leakproof No-Show Bikini

    Really comfortable and fits well. I would definately buy agaun.

    Azra H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    15 hours ago
    The best!

    I've been wearing Knix for years! I love the seamlessness, the fit. I never have to worry about leaks.

    Cynthia H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    23 hours ago
    Comfy

    These are the most comfortable and no show pairs I own.

    JOELLE M.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    3 weeks ago
    I wanted to like these

    I really wanted to like these. However, it was a love connection. I ordered a medium, which is what I wear in other undies. It was too small. Ordered a large and they are also on the small size. Tried to wear them for a day and spent the day thinking about them because they were so uncomfortable and just rubbed in all the wrong places.

    Carrie C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    great even on a daily basis!

    light undies and also can. be worn on a daily basis for those little 'oppsey' moments.

    The feel of the material is lovely and high quality

    carmen h.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    light leak proof No show bikini

    I like that it is black and the lining is also black

    Carina s.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    1 month ago
    Pricey

    I like them- but they are very expensive for what they are.

    Megan K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Great to have around

    These are so practical and comfortable.

    SG L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    perfect period panties

    All of the other period panties I have tried feel like I am wearing something thicker. These feel like my normal undies!

    Lorinda G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Love these!

    These are great for the days after my 2 heavier days. Loving this underwear

    Meagan G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 month ago
    Confidence and comfort

    Fit great, comfortable, no more worries. Success all around.

    Anne R.
    Verified Buyer
    Was this helpful?