Product Guarantee

In the rare event that there a manufacturing defect (quality of workmanship, sewing) with either our mermaid tails, swimming suits, or monofins, we will either replace or repair the item at no additional cost to the customer. Defective items must be verified prior to receiving a replacement or repair.

What is a monofin?

A monofin is a single fin for both feet.

I need help ordering

If you are confused by the online shopping cart, or would just like to talk to a real person, we can help you! Email us

Payments Accepted

We accept Paypal and all major forms of credit cards through our secure processing system. Payment is due upon checkout. Orders that are abandoned and not paid for will be canceled.


After returning an item, you should expect to receive your refund within two weeks of giving your package to the return shipper, however, in many cases you will receive a refund much more quickly. This time period includes the transit time for us to receive your return from the shipper (3 – 5 business days), the time it takes us to process your return once we receive it (1 – 2 business days), and the time it takes your bank, credit card, or other payment method to process our refund request (5 to 10 business days). (Paypal refunds are instant).

Do you ship to my location?

Yes! We ship worldwide.

International Shipping: Worldwide

International packages shipped with flat rate shipping in EMS or DHL through the Japan or France Postal Service. EMS or DHL really varies in delivery times. It can take anywhere from 4 days to 2 weeks to arrive. Europe: KR99 (DPD) International: KR290 (DHL)


Don’t you hate it when you purchase something, sign up for a contest, or subscribe to a newsletter and suddenly your junk mail doubles or triples?  We do too! Abyss Mermaid will never share your information — not any of it — with anybody.  Your phone number, address, email address, etc. are safe with us. Your address is used to ship your package, and if you use a credit card, it’s used to verify you are who you say you are.Your phone number is used to contact you in case there is problem with your order. Your email address is used to confirm your order, update you on your order status, to contact you in case there is a problem with your order, and to provide you with a tracking number. We will never call you with sales or solicitations, we only call if we need to let you know about a problem with an order, or if we’re calling you back to answer one of your questions. If you join our newsletter from the home page or during checkout, you’ll receive very infrequent emails from only us.  Our newsletters aren’t sent very often (less than a few per year), are easy to read, and are easy to unsubscribe from should you ever change your mind about receiving them.  They include announcements about new products, sales, or coupon code promotions. If you have any questions about your privacy or any other issues, feel free to contact us.