Siren Basics

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Free shipping on orders above $100

Daily essentials, reimagined.

Designed to feel soft, whimsical, and sensible.

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Build Your Rotation ✧ Save up to 20% Free

Lucy is 5'10 and wearing size S

Lucy is 5'10 and wearing size S

Lucy is 5'10 and wearing size S

Satya is 5'4 and wearing size S

Save up to 15%

Mesh Thong From $10

Mesh Thong - color variant: Brat

Mesh Thong - color variant: Mint

Mesh Thong - color variant: Royal/Tan

Mesh Thong - color variant: Baby

Mesh Thong - color variant: Cocoa

Mesh Thong - color variant: Clementine

Mesh Thong - color variant: Whipped

Mesh Thong - color variant: Black

Mesh Thong - color variant: White

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Save up to 15%

Mesh Brief From $10

Mesh Brief - color variant: Baby

Mesh Brief - color variant: Mint

Mesh Brief - color variant: Clementine

Mesh Brief - color variant: Whipped

Mesh Brief - color variant: Cocoa

Mesh Brief - color variant: Brat

Mesh Brief - color variant: Royal/Tan

Mesh Brief - color variant: Black

Mesh Brief - color variant: White

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"Squid" Silky Full

Silky Full Brief $14

Silky Full Brief - color variant: Squid

Silky Full Brief - color variant: Glass

Silky Full Brief - color variant: Jelly

Silky Full Brief - color variant: Mist

Cloud Pajama Set $98

Cloud Pajama Set - color variant: Sky

Cloud Pajama Set - color variant: Wine

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Cotton Hipster Thong $12

Cotton Hipster Thong - color variant: Black

Cotton Hipster Thong - color variant: Mint

Cotton Hipster Thong - color variant: White

Cotton Hipster Thong - color variant: Royal

Cotton Hipster Thong - color variant: Brat/Black

Silky Curve Thong $14

Silky Curve Thong - color variant: Mist

Silky Curve Thong - color variant: Jelly

Silky Curve Thong - color variant: Glass

Silky Curve Thong - color variant: Squid

"Primary" Double Mesh Thong

Mesh Contrast Thong $14

Mesh Contrast Thong - color variant: Princess

Mesh Contrast Thong - color variant: Primary

Mesh Contrast Thong - color variant: Limestone

Mesh Contrast Thong - color variant: Robin's Egg

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@lirisaw in the Aquamarine Bikini

@linmick in the Mesh Thong

@jordandaniels in the Cloud Set

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@themonthapril in the Mesh Brief

What customers are saying

"I LOVE the underwear - super cute and comfortable. I plan on ordering more products soon! I had an overall excellent experience!"

Su

"I adore the cute colours of the undies in my order. I love the fit of the thongs and I have shot underwear as a curve model for 20+ brands, so I know all the things that can be very wrong fit wise lol."

Lotte

"I LOVEEEE everything I ordered. The double mesh thong is my favorite thing I got and I’m literally obsessed with everything so that says a lot. Like such good material looks I’m totally ordering more ASAP. Siren Basics 4everrrr:)))"

Ari

“The product speaks for itself (100% love)… this is what keeps me coming back.”

Anya

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Build your bundle

Mix & match 5, 7, or 10 pairs. Save up to 20%

start mixing

The Cloud Set

Ultra-soft bamboo fabric with a cool, breathable feel and a bouncy drape.

Shop The Cloud Set

Matching sets

Made to wear together

Shop sets

The Swim Shop

Made for long days in the sun

Shop Swim

The Best Underwear for Comfort and More Coverage

The Best Underwear for Comfort and More Coverage

Underwear designed with a more considered cut for a secure, comfortable fit that stays in place throughout the day.

Woman wearing red underwear in a relaxed, natural pose showing a smooth, comfortable fit

Underwear That Doesn't Dig In or Ride Up

A guide to soft, flexible underwear designed to stay in place without digging in or shifting throughout the day.

Soft purple fabric with a smooth, lightweight texture

The Best Underwear for Leggings

A guide to comfortable, low-profile underwear designed to move naturally under leggings.