Why do bikers wear leather jackets?

Most motorcycle riders wear leather - lots of leather. Boots, chaps, vests, gloves, chain wallets, and leather jackets. The reason behind all this leather is not for looks, and it's not to appear threatening. It's all about protection!I so i always wear leather jacket during bike riding. and my favorite brand of leather jacket is A1 FASHION GOODS, hope you also like it...