Cozy knickers tailored to fit your body

CYA (aka Cover Your A**) your new go-to knickers.

Tired of those ill fitting undies too?

Most underwear brands offer very limited sizing e.g. S, M, L, etc. that assumes a standard 10 inch difference between your waist and hip measurements. In reality this can range from 2 -15 inches or more.

When each bum is so unique, why shouldn’t the sizing be?

Meet CYA: Knickers tailored to you, down to an inch.

Rear view of a woman in black underwear and bra, hair styled in a bun, against a plain background.
Person wearing black underwear / knicker hair in a bun, viewed from the back.

Bringing bra sizing to undies

At CYA we are excited to bring you custom-fit knickers by using your waist and hip measurements, and bringing the tried-and-tested bra sizing system to your bottom

Rather than just a Small, Medium or Large, you will now know if your bottom is a 28B, a 33F, or a 38C and be able to find your perfect size out of 50 sizes currently available!

Are you ready for your undies to fit YOU, instead of you squeezing into your undies?

Three women posing in black underwear on a white bed, smiling and expressing confidence.

Ready to find your perfect knicker?

Three women in black knickers / underwear viewed from the back, standing together with arms around each other.

How it works

  1. Measure your mid-waist and hips in inches

  1. Input it into the calculator to find your custom CYA size

  2. Order your perfect-fitting pair

  3. Have the happiest bum in the world!

Woman in a blue sweater lying on white sheets wearing comfy knickers, smiling and stretching.

Say CYA to excess fabric, too tight a waist, or that uncomfortable wedgie following you around all day.

At CYA, we believe that your bottom deserves as much attention and care as your top and we’re here to give your bum the space it deserves!

Our Customers

  • Woman in floral dress near pool in desert landscape at sunset.

    "Love these undies! Great fit, great quality, my new go-to!"

    - Kate Wharton

  • Woman in red dress with sunglasses holds child in white shirt outdoors at a garden setting with wooden chairs and tables.

    “The perfect fit even for new moms - and works with any kind of outfit! Definitely becoming my go to undies.

    - Efe Braimah

  • A person wearing a black jacket, beanie, and colorful leggings is sitting on a rock in a forested area with bare trees. They are smiling while petting a large dog on a leash. There is a thermos and gloves nearby on the rock. It's a sunny day, and some snow is visible on the ground.

    "So glad to finally have undies that are the right size and fit for me! Knickers desperately needed an upgrade "

    - Sam Allen

  • Person wearing a white eyelet blouse and sunglasses standing in front of yellow shutters with a "Margaritaville" sign above.

    “Fits me perfectly, so soft and comfortable - no wedgies ever!"

    - Marina Vieira

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