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Leakproof UltraThin No-Show Bikini 3-Pack

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ACOTAR™ x Knix

Leakproof UltraThin No-Show Bikini 3-Pack

$68.00 USD

Coming Soon • Oct 15

Limited-edition ACOTAR™ x Knix collection

Absorbs about 2.5 super tampons

Invisible under clothes

Moderate protection without the bulk

Machine washable

ACOTAR™ x Knix

Leakproof UltraThin No-Show Bikini 3-Pack

$68.00 USD

Coming Soon • Oct 15

Limited-edition ACOTAR™ x Knix collection

Absorbs about 2.5 super tampons

Invisible under clothes

Moderate protection without the bulk

Machine washable

Absorbency: Moderate

Size:

True to Size

•

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Part of the limited-edition ACOTAR™ x Knix Collection

Our best-selling leakproof underwear in a limited-edition ACOTAR™ 3-pack.

Comfort-First Fit

Bikini silhouette with a classic mid-rise fit, medium hip and bum coverage.

Worry-Free Protection

Our newest leakproof innovation provides more absorbency without the bulk. Patented 360 LeakSeal™ technology locks in leaks at every edge.

Moderate Absorbency

Absorbs 2.5 super tampons worth of liquid—perfect for moderate flow days, light bladder leaks, and sweat. The carbon cotton gusset top layer keeps you dry.

No-Show Style

Buttery-soft and smooth fabric gives a seamless look and feel. Disappears under clothes, even leggings.

Easy to Wash

Machine washable, just like your regular underwear.

ACOTAR™ is a trademark of Fireheart Inc. ©2015-2026, Sarah J. Maas.

Your Perfect Fit

The fabric feels snug at first but relaxes after washing and wearing, resulting in a perfect fit.

Machine Washable

Wash with like colors on a cold cycle using a mild detergent. Do not bleach, dry clean, or iron. Tumble dry on low.

Fabric

Body: 77% Nylon, 23% LYCRA® XTRA LIFE™Spandex; Fresh Fix Technology® Gusset: Gusset 1: 86% Cotton, 10% Spandex, 4% Carbon; Gusset 2: 96% Polyester, 4% Spandex; Gusset 3: 83% Polyester, 11% Spandex, 6% Polyurethane

Additional Product Ingredient Information

• Days you don’t need leak protection. Everyday freshness and moisture wicking.

0 tsp

• Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.

about 8-14 tsp
about 1.5-3 regular pads
about 4-7 super tampons
about 1.5-3 menstrual cups

• Daily freshness. For sweat, discharge, period spotting, or backup protection.

about 1-3 tsp
about 1-3 pantyliners
about 1-3 regular tampons
about 0.5 menstrual cups

• For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.

about 4-8 tsp
about 1-1.5 regular pads
about 2-4 super tampons
about 0.5-3 menstrual cups

• Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.

about 15-20 tsp
about 1.5-2.5 super pads
about 7-11 super tampons
about 2-3 menstrual cups

$42.00 USD

Coming Soon • Oct 15

ACOTAR™ x KNIX

Choose your Court. Choose your fantasy.

Explore the limited-edition collection of intimates, sleepwear, and apparel inspired by the characters who rule the realm.

The Night Court

Starry skies. Unforgettable Nights. Made for deep bonds and a little...spice.
Shop the Collection

Coming Soon: The Spring Court

Coming Soon: The Autumn Court

Crew Embroidery Socks 2-Pack

$25.00 USD

Coming Soon • Oct 15

Your ACOTAR™ x Knix questions, answered.

What is ACOTAR™?

A Court of Thorns and Roses™ (ACOTAR) is a bestselling romantic fantasy book series by author Sarah J. Maas™. Set in the world of Prythian, the series follows humans and faeries through stories of love, power, loyalty, and adventure. With more than 85 million English-language copies of Sarah J. Maas™ books sold worldwide and over two million ACOTAR-related posts on TikTok, the series has become a global phenomenon with a passionate fan community.

Which Courts, characters, or themes inspired the collection?

The limited-edition ACOTAR™ x Knix collection brings the Courts, characters, and defining moments of A Court of Thorns and Roses™ to life through original silhouettes and exclusive prints across lingerie, sleepwear, and Knix’s signature leakproof underwear.

The collection introduces five new silhouettes inspired by characters and unforgettable moments from the series:

The Nesta™ Silver Flames Corset, inspired by Nesta’s unyielding strength and fire
The Court of Nightmares Lace Teddy & Sheer Skirt, designed to layer together, recreating Feyre's unforgettable turn in the Court of Nightmares
The Starfall Slip & Robe brings Feyre's Starfall night to life
The Elain Lace Thong Bodysuit & Sheer Skirt, which captures Elain’s quiet power
The Amren™ Satin Slip & The Morrigan™ Satin and Lace Slip, signature pieces inspired by Amren's and Morrigan's distinct personas

Why did Knix decide to do a collaboration with this book series?

The partnership marks Knix’s first book-inspired collection and was born from a shared fandom across its team and community. More than 40 ACOTAR™ fans within Knix helped shape the collection, while the brand’s social community overwhelmingly named ACOTAR™ as its most-wanted collaboration. The result is a collection created by fans, for fans, with every detail grounded in the books.

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