... im 21 and im going for the casual mature look. Ispent a lot of money on these cortoroyslum straight pants from American apparel because I thought they were awesome looking and now I don't know what color shirt or tshirt I should buy to match let alone what kind of shoe to buy. I am 21 and I live in new York city and I really want to stop dressing immaturely and start wearing the mature sophisticated casual stuff that seems to be the trend. I was thinking khaki chuck Taylor's low cut with the red line around the border and a earth tone v neck from American eagle but my girlfriend says no. Please help. Also I have grey khakis from desigual. Very slim slim almost skinny and I would like some help on that too. I'm a guy 6'6.