Chain link fence is one of the most traditional and versatile form of wire fencing. Woven wire usually made from galvanized or PVC coated galvanized steel wire. The wires run vertically and are bent into a zig-zag pattern so that each "zig" hooks with the wire immediately on one side and each "zag" with the wire immediately on the other. This forms characteristic diamond pattern seen in this type of fence. In different colours, it blends well with its surroundings.
The reason why chain link has stayed on as a viable solution for all these years is – the flexible fence fabric makes it easier for installation on ground with uneven terrain or steep slopes, and it's a cost efficient system. It also comes in various sizes and can be customized to tailor the requirements of different applications.