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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
Size and Fit Guide
How to Measure
In order to select the correct sizing, we recommend you take the following measurements using a soft tape measure. If necessary, ask someone else to help.
Waist
Measure around the narrowest part of your torso, usually just above your belly button. Keep the tape snug and level, but not tight. The number where it meets is your waist measurement.
Hip
Stand with your feet together and measure around the fullest part of your hips and buttocks. Keep the tape level and snug, but not tight. The number where it meets is your hip measurement.
Build Your 3-Pack
Essential No-Show Bikini
Essential No-Show Bikini
Essential No-Show Bikini
Rewards Members Earn
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Product Description
Comfort-First Fit
Bikini silhouette with a classic mid-rise fit, medium hip and bum coverage.
Essentials Redefined
No-Show Style
Made from our signature buttery-soft PerformaStretch® fabric, it appears invisible under clothing.
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How to Choose?
Essential
- • Days you don’t need leak protection. Everyday freshness and moisture wicking.
-
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.
-
about 8-14 tsp
-
about 1.5-3 regular pads
-
about 4-7 super tampons
-
about 1.5-3 menstrual cups
Light
- • Daily freshness. For sweat, discharge, period spotting, or backup protection.
-
about 1-3 tsp
-
about 1-3 pantyliners
-
about 1-3 regular tampons
-
about 0.5 menstrual cups
Moderate
- • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
-
about 4-8 tsp
-
about 1-1.5 regular pads
-
about 2-4 super tampons
-
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.
-
about 15-20 tsp
-
about 1.5-2.5 super pads
-
about 7-11 super tampons
-
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.
Not required. But for best results, you can rinse your leakproof with cold water in the tub or sink before washing.
Machine wash on a cold, gentle cycle with mild detergent.
For their longest life, air drying is best. Hang or lay flat to dry.
Fabric softeners, bleach, ironing, or heat from the dryer.
What our customers are saying
Generated by AI from 100 most recent customer reviews
Last updated 5 months ago
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.
90%would recommend these products
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2,815 reviews
- Rated 2 out of 5 stars4 minutes agoAspiring Thong
“No-show” is a bold claim for something that migrates north so fast it practically needs a passport. If you have no butt, they have nowhere to go. If you do have a butt, congratulations—you now own a rogue, uncomfortable thong with way too much fabric wedged where the sun doesn't shine. They don’t stay flat; they just map out the terrain of your posterior in the most intrusive way possible.
MGMEAGHAN G.Verified BuyerReviewingEssential No-Show Bikini 5-Pack - Rated 5 out of 5 stars2 days agoEssential no-show bikini 5 pack
Confortable
MMaëlleVerified BuyerReviewingPOS - Essential No-Show Bikini 5-Pack (Old Sku) - Rated 4 out of 5 stars3 days agoLittle snug
I was at the lower end of the size chart and the underwear fits snug. Hoping they loosen with time.
DJDanielle J.Verified BuyerReviewingEssential No-Show Bikini 5-Pack - Rated 1 out of 5 stars1 week agoMore choices for no absorbency bikini underwear
I love your Essential bikini collection, but I find it lacks in color and print choices. We don’t always need absorbency. Why not include an Essential choice with all your new models?
GLGuylaine L.Verified ReviewerReviewingEssential No-Show Bikini - Rated 5 out of 5 stars2 weeks agoUnderwear
As described
DMDana M.Verified BuyerReviewingEssential No-Show Bikini 5-Pack - Rated 2 out of 5 stars2 weeks agoNot leakproof
Quickly found that they can’t handle the lightest leak
SMSuzanne M.Verified BuyerReviewingEssential No-Show Bikini - Last Call - Rated 4 out of 5 stars3 weeks agoKnix First Timer
I think the underwear is comfortable. The fabric is nice. The back of the legs on one side rides up a little.
JMJody M.Verified BuyerReviewingEssential No-Show Bikini - Rated 1 out of 5 stars3 weeks agoThe worst
Why would a period underwear company name a zero absorbancy line ‘essential?’ I realized after it arrived and emailed to initiate an exchange. I received no response despite a follow up email, leaving me with a 5 pack of regular underpants for my daughter that cost over $100 with shipping. Do not shop with this company.
EGEmily G.Verified ReviewerReviewingEssential No-Show Bikini - Rated 3 out of 5 stars3 weeks agosize
I have been purchasing knix bikini packs for years and always size large. This order the sizing seems smaller and I wish I would have ordered xl. No, I did not gain weight and no I will not add a photo.
DSDAYLA S.Verified BuyerReviewingPOS - Essential No-Show Bikini 5-Pack (Old Sku) - Rated 5 out of 5 stars1 month agoGreat undies!
Exactly what I was looking for! Great fit and comfortable.
RBRenee B.Verified BuyerReviewingPOS - Essential No-Show Bikini (ZSkus) - Rated 5 out of 5 stars1 month agoThanks!
Daughter finds these super comfy - quality is excellent!
MMMegan M.Verified BuyerReviewingPOS - Essential No-Show Bikini (ZSkus) - Rated 5 out of 5 stars1 month agoLoved the product, didn’t like how it arrived
I love your products. This was a last call. When it arrived it looked like it was rammed into the package and was wrinkled. It usually arrives nicely folded.
KMKaren M.Verified BuyerReviewingPOS - Essential No-Show Bikini - Last Call
