... Material advise.Polyester– mainly for fedora hat, snapback hat , baseball capAcrylic– mainly for snapback hatCotton(brushed ,washed ... ,twill) – baseball capLinen – fashion army/military capMesh – trucker capWool( lana , fleece) – snapback hat, knitted hatBlending - AllOther(PU, Straw ... ,snapback cap, beanie, sports cap,cowboy hat,bucket cap,military cap,bucket cap, ...