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Adiya is a 36C and wearing KNIX L | Front view of model wearing the Catalyst Sports Bra, highlighting the neckline, strap design, and smooth silhouette | White

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Your questions, answered.

What is your extended Holiday return policy?

Eligible items purchased online or in stores between November 2, 2026 and December 31, 2026 may be returned through January 29, 2027. All other purchases fall under our 30 day Returns Policy. For sale items, please refer to the sale-specific return policy below to determine eligibility. Some exclusions apply. See more details here.

When will I receive my order?

Processing Timelines
Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.

Delivery Timelines
For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays. View detailed cutoff dates here.

What is your First Pair Risk Free for 30 Days Guarantee?

Leakproof Underwear, Risk Free

Trying leakproof underwear for the first time? Your first pair is completely risk free for 30 days. Wear them, wash them, and see how they work for your body. If they’re not right for you, we’ll refund your first pair. Prefer a different size or style? We also offer free exchanges.
How it works:
* Risk free applies to leakproof underwear on your first order
* Refund covers the item price (original shipping excluded)
* Just email info@knix.com and we’ll take care of you

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Your questions, answered.

What is your extended Holiday return policy?

When will I receive my order?

What is your First Pair Risk Free for 30 Days Guarantee?

How do I find my size for an exchange?

Are Leakproof products tax-free?

Can I make changes to my order after it’s been placed?

Can I update or cancel my order after placing it?

My package is missing. What should I do?

How do I find out my absorbency level?

Can I use a gift card?

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