The A18 cap was developed in 1987 & very quickly became Carhartt s best-selling product & world famous. The warm cap was originally designed as workwear. Today you see them everywhere, on construction sites, campsites, in soccer stadiums & on the street among young people. The thick acrylic yarn makes it your warm companion in cold winter months. The stretchy rib-knit material won t scratch & ensures a snug fit. Features Carhartt label sewn on front Stretchable rib-knit fabric