Still working and searches these Spain Olympic 1920 kits references.
Since the beginning Spainish national football team in 1920, the color red, has always been the color of the Spainish home shirts, but after the civil war, for political reasons of the winning side (rebellious side), was not wanted to relate the national combined with the color red, To the republican side); And it was decided to dress the Spanish team with the blue color as the first kits and the white color as away kits for the Six years, before change to red again.
Credit to Erojkit for the sources,
Since the beginning Spainish national football team in 1920, the color red, has always been the color of the Spainish home shirts, but after the civil war, for political reasons of the winning side (rebellious side), was not wanted to relate the national combined with the color red, To the republican side); And it was decided to dress the Spanish team with the blue color as the first kits and the white color as away kits for the Six years, before change to red again.
Credit to Erojkit for the sources,