material, and "provide a reasonable degree of protection". The only other restriction on equipment defined is the requirement that a player must not use equipment or wear anything deemed dangerous to himself or another player. It is normal for individual competitions to specify that all outfield players on a team must wear the same colours, though the Law states only "The two teams must wear colours that distinguish them from each other and also the referee and the assistant referees". In the event of a match between teams who would normally wear identical or similar colours the away team must change to a different colour. Because of this requirement a team's second-choice is often referred to as its "away kit" or "away colours", although it is not unknown, especially at international level, for teams to opt to wear their away colours even when not required to by a clash of colours, or to wear them at home. The England national team sometimes plays in red shirts even when it is not required, as this was the strip worn when the team won the 1966 FIFA World Cup. In some cases both teams have been forced to wear their second choice away kits; such as the match between Netherlands and Brazil in the 1974 FIFA World Cup where they wore white and dark blue rather than their first choice of orange and yellow, respectively; and the match between Netherlands and Spain in the 2014 FIFA World Cup where they wore dark blue and white rather than their home colors of orange and red, respectively. Many professional clubs also have a "third kit", ostensibly to be used if both their first-choice and away colours are deemed too similar to those of an opponent. Most professional clubs have retained the same basic colour scheme for several decades, and the colours themselves form an integral part of a club's culture. Teams representing countries in international competition generally wear national colours in common with other sporting teams of the same nation. These are usually based on the colours of the country's national flag, although there are exceptions—the Italian national team, for example, wear blue as it was the colour of the House of Savoy, the Australian team like most Australian sporting teams wear the Australian National Colours of green and gold, neither of which appear on the flag, and the Dutch national team wear orange,