Vintage: No information.
Comments from a follower :
The guy on the right side of the picture is wearing a cap. Maybe a swimming cap? This might be two swimmers getting ready to hit the pool and taking the mandatory shower.
In San Francisco, I used to belong to the YMCA. Before it became co-ed the pool rules were that you had to shower and you had to swim nude. Bathing suits were made of fabric that clogged the filters in the pool.
When they started letting women join, they built a women’s locker room upstairs. The pool was in the basement.
The men’s showers had a door that went directly to the pool – the men’s locker room was in the basement as well.
There was a big sign in several languages warning that you had to be wearing a bathing suit to go out the door to the pool.
Especially newer members or those from out of town using their YMCA travel benefits would get turned around and walk out to the pool butt naked looking for the hook they’d hung their towel on.