Launched in 2004, the R-Pro Hydra comes in one weight — heavy, and it’s kinda weird. Why should a relatively slow disc float on water? Because it’s not going to make it over the pond.
Surprisingly, the Hydra offers excellent control, has a generally neutral flight, and — yes — it floats on water.
Hydra by Innova Champion Discs

PDGA Official Specifications
Diameter:
21.1 cm
Height:
2 cm
Rim Depth:
1.4 cm
Rim Width:
1.4 cm
Max Weight:
175.1 g
Date Approved:
May 10, 2004
Who is the manufacturer?
The X-Out R-Pro Hydra is made by Innova.
What is the disc model?
This is the Hydra. Check it out on our famous Flight Guide! You can also check out more Hydra discs here.
What type of disc is this?
This disc is a Midrange Driver.
What are the flight numbers for this disc?
The flight numbers are 3 / 3 / 0 / 2. Flight numbers are displayed as Speed / Glide / Turn / Fade. You can compare this disc on our Flight Guide too.