End of Season Sale — Extra 30% off with Code: EXTRA30. Shop Now.

*Enjoy an extra 30% off all sale styles with code EXTRA30. To redeem discount, enter code EXTRA30 at checkout. Offer is not valid on full price items. Offer cannot be applied to previous purchases and price adjustments will not be made. Offer cannot be combined with any other promotions. All sale items are FINAL SALE and are not able to be returned or exchanged. Sale ends 10/1/2019. Onia has the right to change or end this promotion at any time.

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Onia x Every Mother Counts Ava One Piece


Tossed Rose White
Tossed Rose White
Tossed Rose White
Tossed Rose White

Onia x Every Mother Counts Ava One Piece


Size Guide


US Size Age Height Weight Waist Chest
2 2-3 33-39 27-34 20 19.5
4 4-5 39-45 34-46 21 21
6 6-7 45-52 46-63 22 22.5
8 8-9 52-54 63-70 23 24
10 10-11 - - 24 26

Our Ava swimsuit was created in collaboration with Every Mother Counts a non-profit, dedicated to making childbirth safe for every mother, everywhere. Girls will love this adorable one-piece made from fast-drying material in a comfortable style. Try it as a mommy-and-me set with our Kelly One Piece suit in a matching print - 50% percent of the proceeds from Onia’s mommy and me capsule collection will be donated to EMC in an effort to help mothers around the world gain access to the safe and respectful maternity care that they need.

Product Details
  • Available in sizes 2-10
  • Fully lined
  • Scoop neck
  • Scoop back
Fabric & Care
85% Nylon 15% Spandex. Constructed from a blend of lightweight nylon woven with spandex for stretch this fabric lies smoothly against the body and was chosen for its soft hand feel and quick-dry properties. This suit is meticulously constructed and has been tested to hold up against extended sun and water exposure.
Hand wash cool water. Do not bleach. Do not tumble dry. Hang dry. Do not iron.
Shipping & Returns

U.S. Shipping

FREE FedEx SmartPost delivery
2-9 business days

FedEx 2-day delivery
2 business days, $19

All orders placed after 1pm EST will be shipped the following
business day. This includes expedited orders.

International Shipping

To ship to an International address and pay with an International
credit card, please choose the International Checkout option when
checking out. Shipping and handling fees are calculated upon
checkout and are the responsibility of the customer.

We offer FREE International shipping on orders $500+

If you have questions about your International order, please reach out
to support@internationalcheckout.com.


Onia offers returns for all full price merchandise for U.S. customers within 14 days of the delivery date. To initiate a return, please click here.

International orders are final sale and may not be returned or

All sale items marked "final sale" may not be returned or exchanged.