Football kits are used by football players to identify themselves with their teams. The kits are usually worn on the field during matches and training sessions. Football kits are available for sale in a variety of designs, colors, and styles depending on the country or team that they represent. Football kits can be made of different materials including polyester, cotton, or even wool. The most expensive football kits are made of wool because it is durable and allows sweat to escape easily which gives players more freedom to move around the field. Football kits have been around for a very long time because they have always been important for identifying teams in a game. Since football is such a popular sport all over the world, there are many different styles and designs for these items available on the market today. The first football kits were made from wool and cotton. They were hard and uncomfortable for players to wear. These kits were not very popular because they were heavy for players and restricted movement. A complaint about these football kits was that players had to get permission from their families before they could play because the kit was so expensive to buy. 
However, in the 1860s, when rubber became a popular material to make football kits out of, players got wet playing in the rain because they did not have any way to get dry. In 1879, Umbro invented the white football shirt which gave teams a way to be seen more easily instead of wearing different colored shirts. This made it easier for spectators to recognize teams. The first colored football shirts were created in the 1880s. Teams started wearing their colors on the shirts that they wore while playing. The colors were used to represent different things like a district or a town. In 1882 professional players began wearing numbered kit items so that they could be identified on the field. This was the first time an official was used in a game. In 1905, to protect the players from injury, new laws were put in place for football kits. Some of these laws include: no neck padding and shorts must not go above the knees of a player. These laws were put in place because of concerns about head injuries from the 1907 season. In 1912, the International Football Association Board was created in an attempt to standardize the rules for football kits. In the mid 1960s, teams switched from wool to synthetic fibers which made it easier for them to get dry after getting wet. In 1970, new styles of football kits began to appear on the market. These new designs were mostly created by English football players who wanted a lighter clothing item so they could play better; these designs included: short sleeves and lightweight material. Today there are many different styles of football kits available on the market. They are available in different colors and designs depending on their uses and the team that makes them. 
football kits
Football kits are the clothes worn by players of association football. They have evolved dramatically since they were first introduced in the late 19th century. The first football kits were made of thick cotton with a heavy woollen material to make it more durable and water resistant. The shirts were often white, because they could get dirty more easily than other colours and it was easier to recognise the teams apart. In 1872, Charles Goodyear discovered vulcanization and found that rubber had a much better resistance to water and perspiration than cotton or wool did. This meant that shirts could be designed with thinner, lighter materials which allowed for better movement of the player's limbs without being too constricting. The new shirts became popular in 1874 when Charles Wreford-Brown of Aston Villa took advantage of Goodyear's new technique and introduced them to the English club. The first football boots were introduced in 1877 by German company Adidas. They were black, heavily studded and extremely heavy, so the players could crush an opponent's foot with each step. The boots were so heavy that these players had trouble running at night. Even worse, their cleats caused their shoes to tear apart after a few hours of play. 
Undeterred by these challenges, many teams continued to use the old style of boots until they became more practical and stylish in 1904, when British company Lebauer began introducing leather uppers with new rubber-soled blades that no longer damaged the shoes themselves. The style and design of football shirts changed dramatically around the 1950s. Some teams sported bright, bold colours, like the red shirt that Newcastle United wore when they won their first FA Cup in 1951. Other teams opted for a more simplistic approach with their kits, especially after English team Preston North End beat Arsenal in a friendly match in 1888 and showed up to the post-match dinner wearing a simple white shirt. Preston's owner ordered his players to wear the white shirts again because it was easier for spectators to spot the players on a grass field than if they were wearing colourful shirts. The 1980s saw many new advances in the design of football kits, as manufacturers designed clothing that was lighter, more durable and easier to wash. Companies such as Nike, Adidas and Puma began producing football shoes with studs on the soles for better grip on artificial grass surfaces. 
Many teams made changes to their kit designs around the same time. Manchester United's home shirts were redesigned in 1995 to include a blue triangular badge with the club's initials emblazoned on it while Aston Villa updated their away kit to include blue and white horizontal stripes down the bottom of the shirt. Football clubs can also choose their own colours for their kits. If a club is sponsored by a company, the company's slogan or name may appear on their shirts. For example, Manchester United are sponsored by American car manufacturer Chevrolet and wear their logo on their shirts. In the Premiership, Adidas makes the kits for all teams apart from Arsenal and Zenit Saint Petersburg. During the second half of the century footballs evolved significantly to become more practical and durable. Footballs manufactured today are in much better shape than their counterparts made in earlier decades. The majority of football-related injuries happen to players' legs, feet and ankles due to poor construction and design of footballs.