Vintage Newsboy Cabbie Cap Hat Tan Driving Hat Mens. Great for Spring and Summer, this lighter weight hat is 100% polyester. I washed the hat and it came out beautifully. Before washing, I could barely read "polyester" on the label under the "K". I could not find the "K" brand anywhere in my internet search. Tan color is accurate in the first 4 pics. Nice quality hat!! M