Sale: 30% off All Leakproof

What’s the Anniversary Sale all about?

We’re celebrating 12 years of helping customers feel unapologetically free. Take 30% off all Leakproof products and save big on select doorcrashers. Club Knix members shop first on Wednesday, April 16 (join Club Knix for free). The sale opens up to the public on Thursday, April 17 and runs through to Monday, April 28. Stock is limited and the deals won’t last—shop fast!

Can I shop in-store too?

Absolutely! Have a specific style in mind? Email your local store to check what’s in stock. Find your nearest store here.

Are there any exclusions?

Some exclusions apply—check the fine print below for all the details!

What’s your return policy for the sale?
Sale items can be exchanged or returned for store credit only. No refunds. You can view our full return and exchange policy here.

What size should I get?
Check out our Size Guide to find your perfect fit!

Is Essential underwear leakproof?
Essential is not leakproof. It’s a soft, no-show everyday pair of underwear.

Does adding to cart hold my items?
We recommend acting fast to snag your faves because items aren’t reserved in cart or at checkout.

What payment methods can I use?
We accept credit cards, Knix gift cards, PayPal, ShopPay, Afterpay (USA), Sezzle (CAN), and more.

Will you restock during the sale?
No restocks—once it’s gone, it’s gone! Shop early to score your size.

Can I use a discount or rewards code?
Yes! You can use loyalty points, referral codes, or ambassador codes. Only one code per order, though. New customer welcome codes apply to regular-priced items only.

Do I earn loyalty points on sale buys?
You sure do! Shop away and watch those points stack up. Not a Club Knix member? Sign up for free today.

Can I pay with a Knix gift card?
Yes, gift cards are welcome during the sale! Enter your gift card code at checkout in order to redeem.

Can I change or cancel my order?
Once an order is placed, we cannot guarantee changes. Still need help? Contact us via live chat on our website or email info@knix.com as soon as possible.

How long will shipping take?

We’re working overtime to pack your orders! Please allow up to 4 business days for processing.

Can I shop the sale internationally?

Yes! The Anniversary Sale is for all our customers—shop on knix.com for international shipping options.