Matisse loved patterned rugs, so I'm sure if he wore sneakers, this might have been one of his. Such an odd name. Sneaker. Where did that come from anyway?
I just looked it up and here is what I found: "Keds were first mass-marketed as canvas-top "sneakers" in 1917. These
were the first sneakers. The word "sneaker" was coined by Henry Nelson
McKinney, an advertising agent for N. W. Ayer & Son, because the
rubber sole made the shoe stealthy or quiet, all other shoes, with the
exception of moccasins, made noise when you walked." - Mary Bellis