Knix
Up to 60% Off - Last Call
20% Off Sitewide (Exclusive)
20% Off - Buy 2+ Bras
20% Off - Buy 5+ Underwear
Free Shipping - Orders $100+ Knix
20% Off - Underwear Kits & Packs
15% Off Your First Order
Knix Leakproof Underwear, Comfortable Bras & Everyday Activewear
What if your underwear could give you a little more confidence throughout the day—without sacrificing comfort or style?
That’s where Knix comes in.
Known for its innovative leakproof underwear, wireless bras, activewear, swimwear, shapewear, and everyday essentials, Knix has built a loyal following around clothing designed for real bodies and real life.
Whether you're dealing with periods, light bladder leaks, sweat, long workdays, travel, workouts, or simply want underwear that feels incredibly comfortable, Knix offers a range of practical solutions.
And the brand has expanded well beyond leakproof underwear. Today, you can shop bras, sleepwear, activewear, swim, shapewear, apparel, and more.
About Knix
Knix is a modern intimates and apparel brand best known for its innovative approach to leakproof underwear and comfortable everyday essentials.
The current collection includes:
✨ Leakproof underwear
✨ Wireless bras
✨ Everyday bras
✨ Activewear
✨ Swimwear
✨ Sleepwear
✨ Shapewear
✨ Thigh Saver® shorts
✨ Apparel
✨ Kits & packs
The brand's leakproof assortment is organized by absorbency levels, ranging from Essential and Light through Moderate, Heavy, and Ultra, making it easier to choose a product based on your needs.
What Makes Knix Different?
The biggest difference is that Knix doesn't treat underwear as something that simply needs to look good.
It's designed around comfort, movement, protection, and everyday confidence.
Knix's leakproof products are designed to handle different types of moisture, including period blood, sweat, pee, and discharge, depending on the product and absorbency level.
That makes the brand particularly interesting for anyone who wants to simplify their routine.
Instead of constantly thinking about whether you're prepared for a long day, workout, commute, or unexpected situation, the right Knix product can become another dependable layer of your outfit.
Knix Leakproof Underwear 🩲
Leakproof underwear is the category that put Knix on the map.
The collection includes different silhouettes and absorbency levels, so you can choose based on your lifestyle and coverage preferences.
Popular options include:
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Super Leakproof® Dream Short™
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SuperPlus Leakproof® Dream Short™
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Super Leakproof® Dream Boxer™
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Leakproof UltraThin No-Show Bikini
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Leakproof UltraThin No-Show Thong
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Leakproof High Rise
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Leakproof Boybrief
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Leakproof French Cut
Super Leakproof Dream Short
The Super Leakproof Dream Short is one of Knix's standout styles.
It's designed for people who want more coverage while still getting the soft, comfortable feel expected from everyday underwear.
The current Knix site lists the Dream Short at $42, with buy-more-save-more promotions available.
It's particularly appealing for:
🌙 Overnight wear
🏠 Relaxing at home
✈️ Travel
🩸 Period days
💻 Long workdays
Super Leakproof Dream Boxer
Prefer a boxer-style silhouette?
The Super Leakproof Mini Dream Boxer is another current best seller, priced at $48 on the U.S. site.
The longer silhouette gives additional coverage while keeping the relaxed, comfortable feel that Knix is known for.
UltraThin No-Show Underwear
Not everyone wants maximum coverage.
For leggings, dresses, fitted pants, and other close-fitting outfits, Knix's UltraThin No-Show styles are particularly interesting.
Current options include:
✨ No-Show Bikini
✨ No-Show Thong
✨ No-Show Boybrief
✨ No-Show French Cut
✨ No-Show High Rise
The Light Leakproof No-Show Thong and Bikini are currently listed at $27, while the High Rise version is $32.
These are a great option when you want leakproof protection without the bulk of traditional period products.
Knix Bras 👙
Knix isn't only about underwear.
The bra collection includes wireless and everyday styles designed around support and comfort.
Current popular options include:
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Revolution V-Neck Bra
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WingWoman Contour Bra
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Uplift Push Up Bra
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FreeFlex™ Demi Bra
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360° Smoothing Shape & Smooth Bra
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Revolution Adjustable Pullover Bra
Revolution Bra
The Revolution V-Neck Bra is one of Knix's most recognizable current styles.
It's listed at $65 and is currently included in Knix's bra promotions.
The V-neck silhouette makes it particularly versatile under lower-neck tops and dresses.
WingWoman Contour Bra
The WingWoman Contour Bra is another popular option for shoppers looking for shaping and support while maintaining a comfortable everyday feel.
At $68, it's positioned as a premium everyday bra rather than simply a basic essential.
Buy More, Save More 💰
If you're planning to refresh your underwear drawer, Knix currently offers a useful volume discount.
The official site advertises:
Buy 3+ → Save 15%
Buy 5+ → Save 20%
The offer applies to eligible underwear and Thigh Saver styles, with exclusions for Sale and Last Call items. The discount is automatically applied at checkout.
This is especially useful because underwear is one category where buying multiple pairs makes practical sense.
Bra Bundle Deals
Knix also has promotions for shoppers buying multiple bras.
The current official offers include 20% off when buying two eligible bras, while selected bra bundles can also be purchased at set prices.
That makes it easier to build a small rotation instead of relying on one favorite bra every day.
Free Leakproof Underwear With a Bra
One of the most interesting Knix promotions is the FREELEAKPROOF offer.
Knix currently advertises a free pair of eligible UltraThin underwear when you purchase a qualifying bra valued at $65 or more and apply code FREELEAKPROOF. Both products need to be added to the cart, and offer restrictions apply.
This is a particularly good promotion if you're already planning to buy a new bra.
Instead of purchasing your underwear separately, you can potentially add an eligible pair as part of the promotion.
Knix Activewear 🏃♀️
Knix has also expanded into activewear designed for workouts and everyday movement.
The active collection includes:
🏃 Sports bras
🧘 Leggings
🩳 Shorts & skorts
👕 Tops
🧥 Jackets & sweatshirts
👗 Active dresses
🎾 Leakproof activewear
The brand describes its activewear as functional, lightweight, and stretchy, designed for workouts as well as being on the move.
Leakproof Activewear
This is where Knix's core expertise becomes particularly interesting.
Leakproof activewear is designed to provide protection against periods, light bladder leaks, and sweat during workouts.
Current products include:
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LeakStrong™ leggings
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LeakStrong™ shorts
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LeakStrong™ skorts
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Pursuit Leakproof Training Shorts
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Crosscourt Dress
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Crosscourt Pleated Skort
For anyone who has ever skipped a workout because of period concerns, this category can be a useful addition to a gym wardrobe.
Knix Swimwear 🩱
Knix also offers swimwear, giving shoppers the opportunity to build more of their wardrobe around the same comfort-first philosophy.
Swim is available alongside leakproof underwear, bras, sleepwear, activewear, and apparel in the main navigation.
This makes Knix especially interesting for vacations and summer wardrobes.
Knix Shapewear
Looking for a little smoothing?
Knix also offers shapewear as part of its broader intimates collection.
The goal isn't necessarily dramatic compression. Instead, the category fits into Knix's wider focus on comfortable everyday pieces that can be worn underneath dresses, trousers, skirts, and other outfits.
For special occasions, shapewear can be especially useful when you want a smoother silhouette without choosing something uncomfortable.
Knix for Travel ✈️
Knix makes a lot of sense for travel.
Think about how much easier packing becomes when you have underwear designed for multiple situations.
A travel capsule could include:
🩲 Leakproof underwear
👙 Two or three everyday bras
🏃 One activewear set
😴 Comfortable sleepwear
🩱 Swimwear
🩳 Thigh Saver shorts
Instead of packing several types of emergency products, leakproof underwear can become part of your regular travel rotation.
It's particularly convenient for long flights, road trips, vacations, and situations where access to laundry or bathrooms isn't always predictable.
Knix for Work & Everyday Life
Knix isn't just for periods or workouts.
The comfort-focused designs can also work well for everyday routines.
Whether you're:
💻 Working from home
🏢 Sitting in an office
🚗 Commuting
🛍️ Running errands
☕ Meeting friends
✈️ Traveling
comfortable underwear and a supportive bra can make a surprisingly big difference.
And because many of the styles are designed to disappear under clothing, you don't have to sacrifice your outfit aesthetic.
Risk-Free First Pair Guarantee
Trying leakproof underwear for the first time can feel like a big commitment.
Knix addresses that concern with its First Pair Risk Free for 30 Days Guarantee.
According to Knix, first-time customers can wear and wash their first pair of eligible leakproof underwear and request a refund of the item price if it's not right for them. Free exchanges are also available if a different size or style works better.
That's a useful reassurance when you're trying leakproof underwear for the first time.
Knix Last Call Sale 🔥
If you're looking for the biggest discounts, don't ignore the Last Call section.
Knix currently advertises up to 60% off on selected Last Call products, with quantities limited.
Current examples include:
✨ Leakproof UltraThin No-Show High Rise — up to 50% off
✨ Revolution V-Neck Bra — up to 55% off
✨ Leakproof UltraThin No-Show High Rise 3-Pack — 30% off
The trade-off is that Last Call inventory is limited, so popular colors and sizes can disappear quickly.
Underwear Kits & Packs
If you're building a complete underwear drawer, Knix's kits can offer better value than purchasing individual pieces.
Current bundle options include:
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Super Leakproof Dream Team 2-Pack
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Comfort Besties 2-Pack
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SuperPlus Leakproof Dream Short 2-Pack
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Super Leakproof Dream Short 2-Pack
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Full Cycle Kit
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Heavy Flow Kit
Some current kits offer savings of more than $30 compared with buying the individual pieces.
Who Is Knix Best For?
Knix is particularly appealing to people who want their underwear to do more than simply look good.
It's a great option for:
🩸 Period protection
💧 Light bladder leaks
🏃 Active lifestyles
✈️ Frequent travelers
👙 Everyday bra shoppers
🧘 Comfort-focused wardrobes
👗 People who wear fitted clothing
🌙 Overnight protection
The brand is also useful for anyone who simply wants to reduce the number of products they need during their period.
Pros & Cons
What We Love ❤️
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Excellent leakproof underwear range
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Multiple absorbency levels
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Comfortable everyday bras
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Strong activewear selection
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Leakproof activewear
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Useful underwear bundles
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Buy-more-save-more promotions
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First-pair risk-free guarantee
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Lots of silhouettes and coverage options
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Stylish colors and seasonal collections
Things to Consider
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Premium pricing compared with basic underwear
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Best-value offers often require multiple items
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Some promotions exclude sale and Last Call products
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Sizing and fit can vary between styles
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Popular limited-edition colors may sell out
Final Thoughts
Knix has built something genuinely useful by taking a category that many people simply tolerate and making it more comfortable, functional, and modern.
The brand's leakproof underwear remains its biggest attraction, but the broader collection now gives shoppers plenty of reasons to stay.
From wireless bras and everyday underwear to activewear, swimwear, shapewear, sleepwear, and leakproof workout pieces, Knix has created a lifestyle-focused approach to intimates.
The current promotions make the brand even more interesting, especially buy 3+ save 15%, buy 5+ save 20%, bra offers, underwear kits, and selected Last Call discounts.
And if you're new to leakproof underwear, the first-pair risk-free guarantee makes trying the concept a little easier.
Ready to upgrade your underwear drawer? Explore Knix's leakproof underwear, comfortable bras, activewear, and best sellers—and check the latest Knix offers before checkout.