Perhaps not the perfect winter shoe

Sign on the floor at the bottom of the stairs, Science World SkyTrain station, Vancouver

In the wintertime the platforms of the SkyTrain stations get wet and slippery,. In an effort to reduce accidents, and probably lawsuits, there are signs all over the stations and carriages encouraging passengers to take precautions to avoid accidents.

Sign on the floor at the bottom of the stairs, Science World SkyTrain station, Vancouver (Detail)

This sign warning about "proper footwear" bears a startling resemblance to the Converse All Star.

Converse Chuck Taylor All Star
(Source: https://www.converse.com.au/chuck-taylor-all-star-classic-colour-low-black-19166)

A great shoe and a fashion classic, but probably not the best choice for a wet SkyTrain platform.