Sizing + Fit Guide

How to Use the Larken X and Get the Perfect Fit


How do I measure my band and cup size?

To find your band size wrap a measuring tape around your back at band level. This measurement, in inches, is your band size. To find your cup size measure loosely around the fullest part of your breasts. Subtract the band measurement from the bust measurement in inches and use our conversion chart below to determine your cup size. 

Use your cup and band size to find your perfect fit Larken X with our Bra Sizing Chart below: 

How should it fit? Do I need to size up or down?

The Larken X bra is designed with comfort as the priority.  It is a relaxed fit with light support.  If you prefer a more snug fit for pumping and/or more support, or if you are between sizes, we recommend sizing down. Note that to ensure optimal comfort and avoid any uncomfortable digging into your sensitive skin, the Larken X does not have a traditional elastic band at the bottom like other bras.  With this in mind, for those with a larger bust or those who prefer a more secure fit, we also recommend sizing down. 

Should I go with my current or pre-pregnancy size?

We recommend purchasing whichever size you currently measure at time of purchase. Our Larken X Bra was designed to conform and stretch to your changing body for a comfortable fit at all stages of pregnancy and postpartum. It is designed to be a relaxed fit with light support. If you prefer more support or are between sizes, we suggest sizing down.  

Can I exchange my order if I need a different size?

Yes! We offer FREE exchanges within 30 days of purchase on unused and unwashed bras with tags on! Click HERE to complete the return form. 

Any other questions?

Please reach out to us at

Larken in the Wild

To see the Larken X on various shapes and sizes head to the Larken in the Wild Page

The Larken X

Our patented, maximum comfort nursing + hands-free pumping bra was designed to make your life easier.

Larken X is wire-free with relaxed support and skips the weird holes, elastic, zippers or clips — making it the most comfortable, easy to use nursing and pumping bra you'll ever own. With the Larken X, nursing and hands-free pumping is as easy as 1, 2, 3!

To pump, simply make an X!

Step 1

Pull the outer layer of fabric down and the inner layer up.

Step 2

Position the flange between both layers, over the nipple.

Step 3

Repeat the first step, in reverse order, on the opposite side. Position the flange in the same manner.

Step 4

Ensure that no fabric is trapped between your skin and the flange. You’re ready to go!

To Nurse

Simply pull both layers of fabric down (or up) for quick, easy access.

Step 1

Step 2

Don't Just take our Word for it

Thank you Larken!

"I have 3 Larken bras. I wear one every single day and every single night. I don't think I'd be able to successfully and joyfully pump without them. I'm not kidding - I love Larkens almost as much as my new baby."

-Anna W.

Highly highly highly recommend!!

"So many companies claim they have the best bra ever, but I am here to say that Larken actually tells the truth!! The Larken X is hands down the BEST bra I have ever owned. The tank is also perfect. I would wear both every day if I could."

- Jessica B.

A Lifesaver!

“I literally hate all other pumping bras. This one is a lifesaver. It’s comfortable and doesn’t giving me anxiety strapping on a tight/constricting contraption with clips and buckles and straps and BLEH. I would have 50 pairs of the Larken X if I could!!!"

- Lindsey S.

Larken X: U.S. Patent No. 11,096,427