牛仔裤为什么流行？(Why Blue Jeans Popular?)

牛仔裤为什么流行？(why blue jeans popular?)
everywhere you go, you' il see people, male or female,old or young, wearing jeans. indeed, jeans have grown more and more popular since the first pair was born. in newspapers and magazines or on tv you often come across such ads as "buy these jeans they are cheap. buy them—they are hardwearing. buy them they are comfortable.i think there is no cheating in these ads.
in the first place, jeans are so cheap that almost everyone can afford to buy a pair, especially for students and wageearners. no one would not pay less and get more.
that jeans wear well and wash well is their second superiority to other kinds of trousers. wherever you go and whatever you do, you'll find jeans your good companion.
made of pure cotton, jeans are very comfortable. what is more, they produce a good image and make you look casual,sporty, tough, elegant, and sophisticated.
modern fashions come and go quickly, but, thanks to levi strauss, jeans always remain people's first choice.