N-Ferno 6812 Rib Knit Beanie, One Size Fits Most, Black 100% acrylic, stretchable rib-knit fabric for a snug fit. A classic beanie to keep your noggin' warm, cozy and stylish. Suitable for all seasons: Spring/Summer/Autumn/Winter. Our premium, soft acrylic stretches to fit all heads, even Einstein-sized ones. Dimensions: 9.25 x 8.5. Machine washable.