Freediving travel finsTry & Rent
Carbon fins are an investment — try them in the water first. Your rent is fully credited when you buy, so trying is effectively free.
Not sure yet? Rent a pair and try them in the water
- 💰 Fully credited: everything you paid in rent comes off your fin purchase (no expiry)
- 🚚 Shipping days are free — you only pay for the days you use
- 📦 We pay shipping to you; you pay return shipping. We recommend Taiwan Post for returns (fewer size limits). Please keep the box for the return
- 📸 Send us a try-out photo and get an exclusive discount coupon
- 🧳 56 cm blades fit in a backpack or suitcase — take them on your trip
- ℹ️ Design is assigned, medium stiffness only; NT$3,000 deposit, refunded as soon as the fins are returned
How it works
- Find your size with the size finder below, or message us.
- Book online: pick your dates and size on the booking page; we calculate the price and you send it to us by DM.
- Dive: pool, Liuqiu or abroad — and take a few photos.
- Send your photos to get an exclusive coupon.
- Love them? Buy: all rent paid is credited to your purchase, with no expiry.
How to measure & size chart
- Get paper, a pen and a ruler
- Put one edge of the paper against a wall and stand on it with your heel against the wall
- Mark the longest point; repeat for the other foot
- Measure the distance and check the chart below (use the longer foot)
| Foot cm | EU | inch |
|---|---|---|
| 21.6–22.5 | 31-32 | 8.5-8.8 |
| 22.6–23.5 | 33-34 | 8.9-9.2 |
| 23.6–24.5 | 35-36 | 9.3-9.6 |
| 24.6–25.5 | 37-38 | 9.7-10.0 |
| 25.6–26.5 | 39-40 | 10.1-10.4 |
| 26.6–27.5 | 41-42 | 10.5-10.8 |
| 27.6–28.5 | 43-44 | 10.9-11.2 |
| 28.6–29.5 | 45-46 | 11.3-11.6 |
| 29.6–30.5 | 47-48 | 11.7-12.0 |
| 31.0–32.0 | 49-50 | 12.2-12.6 |
FAQ
How is the rent calculated?
NT$500 base rent, plus NT$200 for each extra day. Shipping days are not charged. Please confirm final days and price with us.
| Days used | Calculation | Rent |
|---|---|---|
| 1 day (weekend pool session) | Base rent | NT$500 |
| 3 days (Liuqiu weekend) | 500 + 200 × 2 | NT$900 |
| 5 days (dive trip abroad) | 500 + 200 × 4 | NT$1,300 |
Outbound and return shipping days are not counted. For example, after a 5-day trip, NT$1,300 is fully credited if you decide to buy.
Is the rent really fully credited?
Yes. Everything you paid comes off your Sereia fin purchase, with no expiry.
Can I choose the design or stiffness?
Rental designs are assigned by us and stiffness is medium only. Just tell us your foot pocket size when booking.
Who pays shipping?
Sereia pays shipping to you; you pay return shipping. We recommend Taiwan Post (Chunghwa Post) for returns, as it has fewer size limits. Please keep the box so you can send the fins back in it.
Is there a deposit?
Yes, NT$3,000, refunded as soon as the fins are returned.