Frequently Asked Questions
Everything you need to know before your next beach day.
How do I find my perfect size?
We recommend checking our detailed Size Guide located on each product page. Our suits are designed with high-quality Italian Lycra for a snug, supportive fit; if you are between sizes, we suggest sizing up for extra comfort.
What is your return policy?
We accept returns on unworn, unwashed items with original tags and hygiene liners intact within 30 days of delivery. Please note that for hygiene reasons, we cannot accept returns if the protective liner has been removed.
How should I care for my Sienna Swim pieces?
To ensure longevity, hand wash your swimwear in cold water with a mild detergent after every use. Avoid harsh chemicals, wringing, or drying in direct sunlight, as this can damage the fabric elasticity and color.
Do you offer international shipping?
Yes, we ship Sienna Swim worldwide! Shipping costs and delivery times vary by destination and will be calculated at checkout. Please note that customers are responsible for any local customs duties or taxes.
When will my order ship?
Orders are typically processed within 1-2 business days. Once shipped, you will receive a confirmation email with a tracking number so you can follow your package's journey to your door.
Are your materials eco-friendly?
We are committed to sustainability. Our current collection features fabrics made from ECONYL® regenerated nylon, which turns ocean waste and ghost nets into high-quality, durable swimwear.