You can check out part II here.
Russia's first kit
Russia's away kit
Egypt's first kit
Uruguay's first kit
Uruguay's away kit
Portugal's first kit
Portugal's away kit
Spain's first kit
Spain's away kit
France's first kit
France's away kit
Peru's first kit
Peru's away kit
Argentina's first kit
Argentina's away kit
Iceland's first kit
Iceland's away kit
Croatia's first kit
Croatia's away kit
Nigeria's first kit
Nigeria's away kit
Brazil's first kit
Brazil's away kit
Switzerland's first kit
Switzerland's away kit
Serbia's away kit
Serbia's first kit has not yet been released
Germany's first kit
Germany's away kit
Mexico's first kit
Mexico's away kit