Hat Attack Key Beanie in Cream. Hat Attack Key Beanie in Cream. Shell: 64% acrylic, 26% polyester, 7% wool, 3% elastane. Hand wash cold. Ribbed knit. HATR-WA259. BAA114RE. Hat Attack became official in 1981 and has been making waves in the fashion world ever since. The high-design affordable accessories line features everything from hats to mittens scarves to clutches. A celebrity favorite, Hat Attack pieces are worn by Kristin Cavallari and featured in major fashion magazines.