Chris Coleman fears that Wales will be wearing their "unlucky" grey strip in Austria.
Austria have worn red at home for the last 12 years and Wales manager Coleman admits it spells bad news ahead of their World Cup qualifier in Vienna on Thursday.
Wales lost on the only two occasions they wore the kit -- officially described as charcoal and lime-green -- at Euro 2016, against England and Portugal.
The Euro 2016 semifinalists won the four times they played in red in France -- beating Slovakia, Russia, Northern Ireland and Belgium in their home strip.
"I can tell you no-one wants to wear our grey kit, I will be happy if I never see that kit again," Coleman said. "Red is the kit that we will always want to play in, we love being in the red. It is something you look at.
"If you are Austrian it is something you would look at, if you know the opposition prefer playing in a certain colour."
The Football Association of Wales are set to ask their Austrian counterparts to consider changing colours at the Ernst-Happel-Stadion.
Russia agreed to a similar request at Euro 2016 when they were the designated "home" nation. But Portugal refused to do so in the semi-final when the home strips of the two sides clashed.
Both countries ended up wearing their second kits and Portugal triumphed 2-0 before going on to win the tournament.
Austria played in white shirts, black shorts and white socks until 2004 when then-coach Hans Krankl felt they were too easily mistaken for neighbours Germany.
Krankl changed Austria's kit to red shirts, white shorts and red socks, matching Austria's flag, and the away colours the team wore when famously beating Germany at the 1978 World Cup in Argentina.
"The players will talk about it, the Austrians will know about it, they should know about it," Coleman said. "In years gone by I would have said to you that players do not care what kit they wear, but they do.
"If we have to wear it we have to deal with it, but ideally we will be in red."