If you're rooting for good ol' England then red and white are the colours to wear. A white coloured polo shirt can look perfect with a pair of red cargo pants. You could also wear a white polo shirt that has thin red stripes across it for a classier look. You can opt to wear this type of womens clothing with casual trousers or jeans for a laid back look. Since red could prove to be a difficult colour to find in trousers you should try shopping for white trousers and match it with a red shirt. If you don't want to hunt through your closet for the right colours you can always choose from a range of screen printed t-shirts with the colours, symbols and slogans representing your team.