They say that Donna Karan and Marc Jacobs are visionaries from Manhattan. I think, there is something in it, as New York is a fashion mecca. Walking numerous km from Harlem to lower Manhattan, I had priceless opportunity to observe male fashion. Guys look very stylish there – always in line with the latest trends. Many times their look is a combination of smart casual with hippie elements.
Personally I adore all types of suits and moccasins also slim shirts (with some psychedelic pattern).
Where to shop? Depends how much money you have, as NYC is not the cheapest place for shopping, but definitely cheaper than any big city in Europe!
So starting from the scratch I advise you to visit Forever 21. Outfits there are a bit similar to those , which H&M can offer but you will find there, wider choice of blazers, jackets and shirts.
Find more outfits on Forever 21 website (worldwide shipping)
A bit more expensive is Urbanoutfitters shop.
Shop offers not only clothes but also accessories. Worth to visit its website.
I am absolutely fall in love with Ermenegildo Zegna suits, but usually they cost fortune, therefore I suggest you to visit Banana Republic website, where you can find very similar look.
Another shop which I strongly recommended is Express. Over there I found my first pair of skinny jeans!