Here's what I found a while back when seeking info about tumor necrosis. 1) Necrosis in the tumor means that the cancer cells in that area are dead. The pathologic finding of necrosis suggests a fast-growing cancer. This often happens because the tumor runs out of blood supply in the central portion. Without a blood supply, the tumor cells cannot live.
In association football, where the shoes themselves are known as football boots, there are three different cleat types. There are soft ground cleats which are made for wet weather. The soft ground cleats are always replaceable, and are almost always metal, so when they wear down they are easy to replace.
People want to have the latest and good things, so they have to pay the price. Second thing that had impact on most expensive soccer cleats is the technology and new materials. There are coming new cleats with different materials, advances, corrections and in many different colors. They have also started to build cleats depending of different position (Goalkeeper, Midfielder, Striker, Defender). The third thing that had a big impact on most expensive soccer cleats are the celebrities. Here I mean famous soccer players. People like to watch and play soccer every day more, so they are following most popular & best soccer players.