Those clothes that you are wearing is your (soccer) uniform, isn't it.
That is your soccer uniform, isn't it?
Are you wearing your soccer uniform?
「あなたが着ているその服はユニフォームですね？」は英語ではこのようです。
Those clothes that you are wearing is your (soccer) uniform, isn't it.
もっと短い文章で言いたい時にこのようでふさわしいです。
That is your soccer uniform, isn't it?
それはあなたのサッカーのユニフォームですね。
Are you wearing your soccer uniform?
サッカーのユニフォームを着ていますか？
ご参考までに。
アメリカ合衆国 
