This Hydro-Man vinyl figure is released by Funko in their POP! Marvel x Spider-Man: Far From Home vinyl figure series.
Funko POP! is a crossover vinyl figure series by Funko and other famous franchises such as Disney, Pixar, DC Comics, Marvel Comics, Simpsons, South Park, Uglydoll, etc. Each POP! figure is about ~3" to ~5" tall and crafted in a Japanese anime/manga super-deformed style (NOTE: due to the unique design of each character, the actual size of the figures may be smaller or bigger than stated).
The POP! Marvel x Spider-Man: Far From Home series features characters from the 2019 superhero film of the Spider-Man movie franchise that follows Parker and his friends as they go on a school trip to Europe.