Knix Promo Codes October 2026
Find 115 manually checked Knix Discount Codes for October 2026, including Promo Codes, discounts and exclusive deals. Expired offers are removed regularly.
Knix offers 2 coupon codes and 113 deals as of October 2026. Today's top offer: Postpartum Underwear and Maternity Leggings Available with 40% Savings. Codes are verified and updated daily.
Discover comfort and confidence with 20% off Knix Leakproof Underwear. Apply the discount code for savings on your order.
Embrace worry-free days with 25% off our Leakproof Underwear. Stay comfortable and protected with this essential everyday item.
Achieve your fitness goals with 35% off the Catalyst Sports Bra, offering superior support and style.
Support your journey with 40% savings on our Postpartum Underwear and Maternity Leggings, designed for comfort.
Experience ultimate comfort and support with the Revolution Bra, now 30% off for a limited period.
Achieve your fitness goals with 25% savings on Catalyst Sports Bras, offering high-impact support and superior comfort.
Educators can receive 15% off their Knix orders. Verification of teaching credentials is part of the process.
Elevate your fitness routine with a $15 discount on the high-support Catalyst Sports Bra. Perfect for intense activities.
Indulge in luxurious comfort with 30% off our soft and stylish Pajama Sets, perfect for restful sleep.
Stay comfortable during workouts with 20% off our Catalyst Sports Bra, engineered for high-impact activities.
Support your journey with 10% off our comfortable Maternity Bras. Designed with your changing needs in mind.
Discover enduring comfort and support with 20% savings on the Longevity Bra, designed for your long-term well-being.
Elevate your activewear with 10% off the HiTouch High Rise Legging, perfect for workouts and everyday wear.
Stay dry and comfortable with 18% off our Super Leakproof Underwear and Cotton Leakproof options.
Find various styles of leakproof underwear at competitive price points. Select designs are available from this price.
Experience ultimate protection and comfort with 25% off our Leakproof Underwear, keeping you feeling fresh and secure all day.
Experience ultimate comfort and protection with 20% off on all Leakproof Underwear sets.
Discover adaptive comfort and support with 15% savings on the Evolution Bra, perfect for any occasion.
Experience ultimate period protection with 25% savings on our full range of Period Underwear.
Discover revolutionary comfort and support with 25% off the Revolution Bra, engineered for your best fit.
Experience versatile comfort and support with 25% off the Evolution Bra, perfect for any occasion.
Indulge in comfort with a 25% price reduction on our cozy Pajama Sets and luxurious Robes.
Explore the range of maternity and nursing bras from $45. Different styles are available to support during pregnancy and postpartum.
Get 20% off high impact and medium impact sports bras. This offer applies to a rotating selection of activewear.
Find various comfortable loungewear pieces for less than $40. This includes modal pants and sleep shirts.
Find unparalleled comfort and support during your pregnancy with 15% off our Maternity Leggings.
Elevate your workout with 35% off on our top-performing Catalyst Sports Bra and High Impact Sports Bras.
Experience ultimate protection and comfort with 25% off our Leakproof Underwear, designed for all-day wear.
Achieve a smooth, flattering look with $10 off the WingWoman Contour Bra, designed for superior shaping.
Upgrade your everyday with 20% off our Leakproof Underwear Assortment, ensuring confidence and comfort all day long.
Active and veteran military members are eligible for a 15% discount. This offer is available after status verification.
Dive into summer with 40% off Knix one piece swimsuits. Experience comfort and style with this special offer.
Dive into summer with 22% off our Period Swimwear and One Piece Swimsuits, offering both style and protection.
Discover incredible comfort and support with 15% off on our Wireless Bras and LuxeLift Pullover Bras.
Upgrade your daily comfort with 20% off all Leakproof Underwear, offering reliable protection and peace of mind.
Sleep soundly in the Dream Short, now offered with a 20% discount.
Elevate your support with 15% off our WingWoman Contour Bra, designed for a smooth and flattering silhouette.
Experience superior support with 25% off our Catalyst Sports Bra and Longevity Bra, perfect for your active lifestyle.
Unwind in luxurious comfort with 20% off our cozy Pajama Sets and Robes, perfect for a restful night.
Indulge in ultimate comfort with 50% off our luxurious Pajama Sets, perfect for relaxing at home.
Discover enduring comfort and support with 15% savings on the Longevity Bra, built for everyday wear.
All orders totaling $75 or more qualify for complimentary standard shipping. No minimum purchase is required for some promotions.
Combine multiple pairs of underwear to get a discounted price. This applies to pre-selected sets and build-your-own options.
Dive into summer with 50% off our Leakproof Swimwear. Enjoy confidence and style by the water.
Experience unparalleled comfort and style with 40% off LuxeLift Pullover Bras, perfect for lounging or layering.
Indulge in relaxation with 35% off our soft Pajama Sets and Robes. Perfect for unwinding after a long day.
Dive into summer with 25% off on our stylish and protective Leakproof Swimwear and One Piece Swimsuits.
Achieve your fitness goals with the Catalyst Sports Bra, available with a 25% discount.
Experience superior leak protection with 30% off Super Leakproof Underwear, designed for your heaviest days.
Experience superior protection with 30% savings on our Super Leakproof Underwear, perfect for heavier flow days.
Discover the innovative Revolution Bra collection starting from $50. Prices vary based on specific styles and features.
Customer Reviews
So comfy, but sizing is tricky!
I was looking for some good period underwear and decided to try Knix after seeing them everywhere! I absolutely love my Super Leakproof Dream Short – it's incredibly comfortable and works perfectly. My only tiny nitpick is that figuring out the bra sizing was a bit confusing online; I had to really dig to find the guide. Otherwise, I'm super happy and will definitely be recommending them to all my friends!
Solid value, minor issue
I bought a couple pairs of the Leakproof Bikini underwear, and overall, I'm happy with them. The leakproof tech works as advertised, which is the main thing. They're comfortable enough for everyday wear, and the sizing guide on the website was accurate. Shipping took about a week to get to me in Oregon, which is okay, but not super fast. I wish the waistband felt a little more substantial; it feels a bit thin compared to some other brands I've tried. Still, for the price and performance, it's a good purchase.
Good deal on first order
I was looking for some new activewear and saw Knix had a 15% off first order deal, which was great. I got the HiTouch High Rise Legging and a matching Tank Top. The price felt fair with the discount, definitely helped me decide to try them out. Shipping was free because my order was over $75, which is always a plus for me. Everything arrived in about 5 days, which was faster than I expected. The leggings fit well and feel good quality, so I think it was worth it for the price I paid.
Good bra, quick shipping
Got the Catalyst Sports Bra. Fit well. Shipped fast, got it in 4 days. Would buy again.
Consistent quality, reliable brand
This was my fourth order from Knix, and once again, they delivered. I picked up some more of the Longevity Bras and a few pairs of the Super Leakproof Underwear this time. I've been getting their products for a couple of years now, ever since I first tried their Evolution Bra, and the quality has always been consistent. The bras hold up well after many washes, and the leakproof undies are a lifesaver. My last order took 6 days to get to Phoenix, same as this one, so shipping is pretty reliable too. Always happy to come back to them.
Knix Community Discussion
Share tips, ask questions & help fellow shoppers save more
Hey, I'm thinking about getting some of their leakproof undies. How accurate is the sizing usually? Don't want to get stuck with something too small or big.
Does Knix have a student discount? My friend mentioned something about it.
Are Knix bras actually good for larger busts? I've tried so many wireless bras that just don't offer enough support.
Thinking of buying some of their period underwear. Are they actually PFAS free? Seen some other brands get called out for that.
What's the return policy like for the underwear? Can you return it if it's just not working out, even if you tried it on?
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