A zipper, zip, fly, or zip fastener, formerly known as a clasp locker, is a commonly used device for binding together two edges of fabric or other flexible material. Used in clothing, luggage and other bags, camping gear, and many other items, zippers come in a wide range of sizes, shapes, and colors. In 1892, Whitcomb L. Judson, an American inventor from Chicago, patented the original design from which the modern device evolved.
Zippers with common teeth variations: metal teeth (top), coil teeth and plastic teeth
Examples of special zippers with different tape materials, colors and patterns.
A two-way (double-separating) zipper.
A coil zipper with its slider removed.
Jeans are a type of pants or trousers made from denim or dungaree cloth. Often the term "jeans" refers to a particular style of trousers, called "blue jeans", with the addition of copper pocket rivets added by Jacob W. Davis in 1871 and patented by Davis and Levi Strauss on May 20, 1873. Prior to the patent, the term "blue jeans" had been long in use for various garments, constructed from blue-colored denim.
A pair of jeans
A traditional women's Genoese dress in "blue jeans" (1890s). Palazzo Spinola di Pellicceria, Genoa, Italy.
Copper rivets for reinforcing pockets are a characteristic feature of blue jeans.
Jacob Davis
