Patent ID: 8266722

Claim:
A cap, comprising: a cap body; and a cap bill sewn with the cap body, wherein the cap bill includes a bill cover and a cap bill plate connecting with the bill cover, the cap bill plate, including: a first layer made of material including polystyrene, butadiene, and linear low-density polyethylene, wherein a weight percentage of polystyrene ranges between 65% and 75% in the first layer, a weight percentage of butadiene ranges between 15% and 25% in the first layer, and a weight percentage of linear low-density polyethylene ranges between 5% and 15% in the first layer, the total weight percentage is 100%; a second layer made of material selected from the group consisting of polyolefin filled toughener, high density polyethylene, ethylene vinyl acetate, butadiene, phenylethylene, propenenitrile, and a combination of polypropylene, polystyrene, butadiene, phenylethylene, propenenitrile, ethylene vinyl acetate, linear low-density polyethylene, high density polyethylene, and polyolefin filled toughener; and a third layer made of material including ethylene vinyl acetate, linear low-density polyethylene, and high density polyethylene, wherein a weight percentage of ethylene vinyl acetate ranges between 25% and 35% in the third layer, a weight percentage of high density polyethylene ranges between 45% and 55% in the third layer, a weight percentage of linear low-density polyethylene ranges between 15% and 25% in the third layer, and the total weight percentage is 100% in the third layer; the second layer is disposed between the first layer and the third layer.