While scientists are doing their thing to get the original woolly mammoth back, Duluth’s Woolly Mammoth Cap is still around because it’s highly adept at adapting. This cap is now made with premium lambswool that’s incredibly soft, warm and itch-free. Built for beastly cold, it’s got a plush fleece interior cuff for even more heat-holding protection for your ears and sloping forehead. Mother Nature trying to make you extinct? Pull on a Woolly Mammoth and send the Ice Age packing.