Skip to content 🏆 Best deal right now
Markdowns up to 63% off across underwear and more right now, plus Buy More Save More bundles and a student discount. No code needed on the sale.
Shop Last Call →Knix runs almost all of its discounting through one rail called Last Call, which is where discontinued colourways and prints go. That is where the real reductions live, currently reaching 63% off, and there are a little over 200 items sitting in it at the moment.
The trade off is that Last Call doesn't restock. Once a size sells through in a colour, that's the end of it, so this isn't a section to bookmark and think about. Everything else on the site is full price, softened only by the buy more save more tiers on underwear and bras.
Beyond the sale, the offers worth knowing are the refer a friend credit, which gives $20 each way, and the student verification discount. Every price below came from Knix's own product pages today and each link was checked.
Active Knix deals, September 2026
Engage Medium Impact Sports Bra - Last Call drops to $25 from $68, 63% off and a saving of $43. 48 variants were still in stock at this price when we checked.
String Bikini Bottom - Color Block - Last Call drops to $15.20 from $38, 60% off and a saving of $22.80. 6 variants were still in stock at this price when we checked.
Studio Legging - Last Call drops to $31.20 from $78, 60% off and a saving of $46.80. 16 variants were still in stock at this price when we checked.
Studio Sport Dress - Last Call drops to $39.20 from $98, 60% off and a saving of $58.80. 8 variants were still in stock at this price when we checked.
Classic One Piece Swimsuit - Last Call drops to $44 from $110, 60% off and a saving of $66. 45 variants were still in stock at this price when we checked.
One Shoulder Bikini Top - Last Call drops to $23.20 from $58, 60% off and a saving of $34.80. 14 variants were still in stock at this price when we checked.
Essential No-Show High Rise - Last Call drops to $10 from $25, 60% off and a saving of $15. 2 variants were still in stock at this price when we checked.
Soft Signature Modal Set drops to $34 from $85, 60% off and a saving of $51. 1 variant was still in stock at this price when we checked.
Knix® Active Headband - Last Call drops to $17.50 from $35, 50% off and a saving of $17.50. 1 variant was still in stock at this price when we checked.
Original WingWoman Contour Bra - Last Call drops to $35 from $68, 49% off and a saving of $33. 63 variants were still in stock at this price when we checked.
Knix's Last Call section runs up to 63% off retiring styles and overstock across underwear, bras and swim. It is confirmed on knix.com, the sale price shows in cart, and stock moves quickly.
✓ Up to 60% offNo code neededWhile stock lasts
Knix's Buy More Save More takes 15% off when you buy 3 or more pairs of underwear and 20% off when you buy 5 or more. Mix and match styles, and the discount applies automatically in cart.
✓ 15% at 3+20% at 5+Auto applied
Knix's Double Up and Save lets you pair two of its wireless bras for one bundled price, so the second comes at a discount. Build the bundle on knix.com and the price updates at checkout.
✓ Two bra bundleBundle priceWireless bras
Share your Knix referral link and your friend gets $20 off their first order, then you get $20 in credit once they buy. Grab your link from your Knix account.
✓ Give $20Get $20Account needed
Knix offers a student discount once you verify your student status through its partner. Confirm eligibility and unlock the code from the Knix student offer page.
✓ Student rateVerify statusOn knix.com
User submitted Knix promo codes
?CODE
⚠ Unverified10% Off Code Reported by Readers
Reader reported code, unverified.Reveal code →
?CODE
⚠ Unverified15% Off Creator Code
Reader reported code, unverified.Reveal code →
💡 Knix almost never runs a reliable public code, so the reader codes above are unverified. The dependable wins are Last Call, the bundles, and the student and referral perks.
How to get the best Knix deal
1
Start in Last Call for the deepest markdowns, up to 63% off, with no code needed.
2
Stocking up on underwear? Buy 3+ for 15% off or 5+ for 20% off automatically.
3
Need bras? Double up two wireless bras for a bundled price.
4
Students can verify and unlock a student discount on knix.com.
5
Refer a friend so they get $20 off and you get $20 in credit.
💡 Bundle discounts apply on full price underwear, so combine them with a bras or swim pickup for a bigger basket.
About Knix
Knix is an intimate apparel brand founded by Joanna Griffiths, known for its leakproof underwear, comfortable wireless bras, period products and swim, all in an inclusive size range. Pieces are designed for everyday wear, which is why Last Call, the Buy More Save More bundles and the student and referral perks are the everyday ways to save.
Knix vs the competition
A quick look at how Knix stacks up against other leakproof and intimate apparel brands.
| Knix ★ | Thinx | Parade | |
|---|---|---|---|
| Best known for | Leakproof underwear and wireless bras | Period underwear | Colorful basics |
| Sizing | Inclusive XS to 4XL | Wide range | Wide range |
| Bundle savings | Up to 20% off underwear | Set discounts | Multi packs |
| Student discount | Yes | Sometimes | Yes |
| Best sale window | Summer and Black Friday | Black Friday | Frequent sales |
💡 Our take: Knix discounts often through Last Call and bundles, so you rarely need to pay full price on basics.
Best months to buy Knix
JanFebMarAprMayJunJul 🔥AugSepOctNov 🔥Dec 🔥
- July (🔥): the Summer Sale and Last Call are live now with up to 63% off.
- September: back to routine restocks often pair with bundle savings.
- November (🔥): Black Friday and Cyber Monday are Knix's biggest discount window of the year.
- December (🔥): holiday gifting deals and ready to give sets.
💡 Last Call runs year round, so there's almost always a markdown even between big sales.
Stack your savings
🔥
Start in Last Call
Shop the up to 63% off section first for the deepest markdowns on retiring styles.
✓
Hit a bundle threshold
Add 3 or 5 pairs of underwear to trigger 15% or 20% off automatically.
🎓
Verify student or refer a friend
Layer a student discount or a $20 referral credit on top where eligible.
💡 Sale terms vary, so if the student offer won't stack on Last Call, use it on full price styles instead.
Knix deal FAQ
Does Knix have a promo code?›
Rarely a public one. The reliable savings are up to 63% off in Last Call, up to 20% off with Buy More Save More, and student and referral perks. The four reader reported codes above are unverified until we can confirm them.
What is the best Knix deal right now?›
Up to 60% off in the Last Call sale, with no code needed. Bundles add up to 20% off underwear on top.
How does Buy More Save More work?›
Buy 3 or more pairs of underwear for 15% off, or 5 or more for 20% off. Mix and match styles and the discount applies automatically in cart.
Does Knix have a student discount?›
Yes. Knix offers a student discount once you verify your student status through its partner, then apply the code at checkout.
How does the Knix referral work?›
Share your referral link and your friend gets $20 off their first order, then you get $20 in credit once they purchase.
Are the reader reported codes real?›
They are unverified reader submissions, so we couldn't confirm they work. Rather than print a code that may fail, each one opens knix.com so you can check current offers.
The Bottom Line
Shop Last Call first and mostly ignore the rest of the site unless you need a specific size in a current colour. The sports bra at $25 and the leakproof boxer brief at $15 are the two that change what a Knix drawer actually costs, because these are things people buy several of rather than one.
Swim is the other timing play. It is August, so the swim reductions are about as deep as they will get this year and they won't carry into next season in the same colours. If you're new, use a friend's referral link for the $20 credit before your first order, since that stacks with sale pricing where a code usually won't.
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