ooia products are true to size. You can simply order your usual size.

If you are unsure which size fits you, simply take your hip measurement and compare it with our size chart.

You measure the hip circumference best horizontally at the widest part of the buttom. The tape measure should be flexible, fit snugly, but not cut in.

If you are between two sizes, order the smaller size. Exception: if your thighs are very strong and you are between two sizes, we recommend ordering one size larger.

The best way to measure the chest circumference is horizontally at the strongest part of the chest. The tape measure should be flexible and fit snugly, but not cut in. Then measure the underbust circumference under the breast. The tape measure should be tight here. Your size results from the measurements of the chest circumference and the underbust circumference.

The ooia nursing bra is suitable for any bust up to cup size D. If you have cup size E or larger, unfortunately we cannot guarantee that the bra will provide you enough support. We are currently working on offering larger bras, please sign up for our German Newsletterto get notified as soon as we launch one.

If you are between two sizes, we recommend that you order the bra one size larger.