Water Shoes, Amphibious, 26.5cm

Swimming and river crossing shoes with a blue and yellow gradient design and non-slip sole.
Thank you for looking.
I bought these for crossing the Shikaribetsu River on Mt. Poroshiri, but ended up climbing via a different route, so I'm selling them.
They are amphibious, so they should be useful around water.
These are unused and unopened items stored at my home by an amateur, so please only purchase if you understand this. Thank you.