Yes—we offer one exchange or store credit per order for items that are new, unworn, and have all original tags and hygiene liners attached.

To qualify:

• Your request must be submitted within 5 days of delivery
• Your return must be shipped back to us within 3 business days of receiving the return label

Exchanges and store credit are always free of processing fees.

Please note, we do not offer refunds unless an item arrives damaged or defective.

To begin your exchange, please email customerservice@siennaswim.com within 5 days of delivery. Let us know which item you'd like in exchange so we can reserve it for you. If you’re unsure, we’re happy to help you choose—or we can issue store credit so you can decide later.

We’ll send you a prepaid return label with tracking. Please drop your item off within 3 business days of receiving the label.

Once your return is scanned and on its way back to us, we’ll ship your replacement and send tracking details.

If you’ve opted for store credit instead of an exchange, it will be issued once we receive and inspect the returned item.

Want to move things along faster? Just let us know once you’ve dropped off your return—we’ll prioritize your exchange and get your new suit out to you as quickly as possible.

As a small, independent brand, we do not offer refunds unless an item arrives damaged or defective. We kindly ask that you keep this in mind when placing your order.

For all other cases, we’re happy to offer an exchange or store credit on items that are new, unworn, unwashed, and returned with all original tags and hygiene liners securely attached.

For hygiene reasons, we cannot accept returns on worn items. Any item that shows signs of wear—including removed tags, missing liners, or visible use—will not be eligible for a refund, exchange, or store credit.

If your item is defective, please contact us at customerservice@siennaswim.com within 5 days of delivery. We’ll provide a prepaid return label with tracking so you can send the item back for inspection. Once confirmed as faulty, we’ll issue a refund or send a replacement, based on your preference.

In rare cases where a return is approved outside of our standard policy, a $6 processing fee will be deducted to help cover shipping and restocking costs.

The following items are final sale and not eligible for return, exchange, or store credit:

• Sale or discounted styles
• Last Chance items
• SMOOTH personal care products
• All international orders placed on or after July 1, 2025

We kindly encourage you to review product details and reach out to us with any questions before placing your order—we’re always happy to help at customerservice@siennaswim.com.

All international orders placed on or after July 1, 2025 are final sale.

Due to rising tariffs and increasing customs costs, we’re no longer able to offer returns or exchanges on orders shipped outside the U.S.

If you have any questions about sizing or fit, our team is here to help before you place your order. Just email us at customerservice@siennaswim.com—we’re always happy to assist.

We want you to love your SMOOTH razor. If you are not happy with it within our standard 5 day policy, we are happy to provide store credit for the original razor value only. In order to receive store credit, please ensure the razor is in acceptable condition; broken razors will not be accepted.

Please note:

• Used blades, soaps, and oils are final sale and not eligible for return or exchange
• If you purchased a kit, store credit will apply only to the razor, not to additional components like blades, oils, or soaps

We recommend reviewing this policy carefully before placing your SMOOTH order. If you have any questions, our team is happy to help at customerservice@siennaswim.com.

We want every experience with Sienna Swim to feel effortless—but there are a few key details to keep in mind:

• We do not offer refunds for change of mind or incorrect selection. In these cases, we’re happy to provide store credit.
• Refunds are only issued if an item is confirmed to be faulty, and must be requested within 5 days of delivery.
• To request an exchange, contact us within 5 days of delivery, and return your item using the provided label within 3 business days.
• If you’re not ready to select a replacement, we’ll issue store credit so you can decide later.
• Returned items must be new, unworn, unwashed, and have all original tags and hygiene liners attached.
• We reserve the right to decline returns that are not in new condition.
• Sale items are final sale and not eligible for return, exchange, or store credit.

If you’re ever unsure, our team is always here to help—just email customerservice@siennaswim.com.