Which preposition should I choose:
e.g. I would like to have another T-shirt on/in black.
Clothes come in different colours, styles, sizes etc.
Do you have this T-shirt in black?
Do you have these boots in a size 6?
I bought the same shirt in three different colours.
I need a pair of jeans this colour and this length but in a slightly different style.
Actually, I meant a little bit annoying.