Please use our size charts as a general guide to help you select your size for our swimwear and activewear. If you have a specific sizing question or would like more information, please e-mail to the MF SEA girls. We are always happy to advise!

Our suits run pretty true to size as per our size charts. Our suits are designed for comfort and being active, both in and out of the water. They are made with 100% recycled materials and double-lined for durability, so our fabric won’t stretch out as much as other swimwear you might be used to. This means that if you are on the cusp between two sizes, we would recommend sizing up, as our fit may feel more snug.
We recommend measuring yourself following the guidelines provided on our size chart page. Please note, some of our styles do differ and have a unique fit. So in addition to using our size charts, we recommend also referring to any specific recommendations provided on each product page.

We would typically recommend going with the larger of the two sizes to ensure a comfortable fit all around.

We recommend going with a larger size to accommodate for height, typically the smaller size will be too short. Some of our suits have a more slim, high-waist than others, so these should still fit well around the waist.

We've designed our sport bra sizing to be consistent with our everyday bra sizing; so, you don't have to find a new size. For example, if you wear a 34B in our other bra collections, we recommend that you choose a 34B (or alpha Size S) in any of our sport bras. The fit, itself, will be the same.

What's different is the way a sport bra should feel: comfortable, but snug and super secure. No matter your cup size, excessive movement & bounce can lead to discomfort. That's why we design every MF Sea Sports Bra to compress and hold everything in place, reducing bounce by as much as 74%.

Feel free to send us your measurements for custom sizing advice.

E-mail to the MF SEA girls. We’ll do our best to help!