South Korea 2018 Home Kit Concept

Red is the traditional shirt color of the South Korean national team, who are consequently nicknamed the "Reds", while the fans are called the "Red Devils". The away shirt has varied between white and blue. In 1994, the home shirt shifted from red to white, but in October 1995, red returned as home color, paired with black shorts.

Saudi Arabia 2018 Home kit Concept

Saudi Arabia secured qualification for the 2018 World Cup, their first in 12 years, ahead of Australia. In the opening match, Saudi Arabia were crushed by hosts Russia 5–0, making this the second largest victory of any host. Saudi Arabia then lost 1–0 to a Luis Suárez goal that put Uruguay as the eventual group winners. Although they were already eliminated, Saudi Arabia managed to salvage some pride by winning their final group stage match against Red Sea neighbours Egypt.

Traditionally, Saudi Arabia's home kit is white with a green trim, and the away kit is green with a white trim (the Saudi flag colors).

Japan 2018 Home Kit Concept

The national team kit design has gone through several alterations in the past. In the early 1980s, the kit was white with blue trim. The kits worn for the 1992 Asian Cup consisted of white stripes (stylized to form a wing) with red diamonds. During the 1996 Asian Cup and in the 1998 World Cup, the national team kits were blue jerseys with red and white flame designs on the sleeves, and were designed by JFA (with the sponsor alternating each year between Asics, Puma, and Adidas). The 1996 design was reproduced in a special kit used against Syria on 7 June 2017.

Japan uses blue and white rather than red and white due to a superstition. Japan first used blue shirts in the 1930 Far Eastern Championship Games, where a team of the Tokyo Imperial University (whose color is light blue) represented Japan wearing light blue shirts, and then in a 3–2 victory over Sweden in the first game of its maiden major international competition, the 1936 Summer Olympics. When Japan was coached by Kenzo Yokoyama (1988–1992) the kits were red and white, matching the colours of Japan's national flag. After failures at 1990 FIFA World Cup and 1992 Summer Olympics qualifications, the red shirt was scrapped.

Iran 2018 Home kit Concept

Iran began their 2018 FIFA World Cup qualification campaign with friendly matches against Chile and Sweden in March 2015. Queiroz resigned from his managerial post thereafter due to disagreements with the Iranian Football Federation. On 14 April 2015, Iran were drawn with Oman, India, Turkmenistan and Guam in the second round of qualifiers. On 26 April, Queiroz announced that he would continue as the manager of Iran for their 2018 World Cup campaign. Iran became the second team to qualify for the 2018 World Cup after a 2–0 win at home over Uzbekistan on 12 June 2017. They also clinched first place in their qualification group after South Korea's defeat to Qatar.

Traditionally, Iran national football team's home kit is white, and the away kit is red. Sometimes, green shirts with white shorts and red socks are used.