On May 20th, 1873 Levi Strauss and Jacob Davis received a U.S. patent for their brand of blue jeans with copper rivets. We honestly can’t thank Levi and Jake enough for their epic contribution to the fashion world. Because of their efforts, women everywhere have the ability to show off their curves and look hot while keeping it casual. In the case of this photo gallery we pulled of girls in tight ass jeans, we’re keeping it REAL casual – like tops-are-optional casual. Sure they might be hard to get on and off but it’s worth it. Don’t worry, we didn’t include mom jeans.