Fbf Originals Nfl Marquee Sleep Soft Sock 49ERS OSFA Go to amazon.com Related posts Which is the best 49ers socks? FeatureFbf Originals NFL Marquee Sleep Soft Sock 49Ers OSFA Descriptionmaterial: 99% polyester/1% spandex, embroidered graphics, one size fits most, soft cloud yarn knit, machine wash, officially licensed.