Being into Mad Men will lead to you becoming a fan of pinstripes... but why do you need them in your wardrobe outside of at TV series? Pinstripe is a pattern that men strayed away from for the about the last five years. Its been looked down upon as old school, tasteless, and solely the suit of the CEO. Now, you can dress for the job you want and not the job you have while looking five years younger instead of older. It creates a powerful look that sartorially can be used formally and casually - automatically giving you the image of the most powerful person in the room.
1) Adds Length
The pinstripe pattern, especially those with wider distance between the chalk stripes, add more length to your body making you seem taller than you really are. If you're a tall/lanky fellow, you'll probably want to reconsider investing in a pinstripe suit. For those who are short/stocky or are average height men - you've hit the jackpot.
A pinstripe suit asserts itself as a power suit no matter where you go. You can go straight from the office to an afternoon/evening function by replacing the pinstripe suit pants with white or light wash denim. Also, if you're looking to pair your new suit with a patterned shirt (which takes mad skills) you can wear it twice a week once with a white shirt then again with a subtly patterned shirt of your choice.