If there's one piece that's essential to a man's wardrobe, it's a suit. But the stylish man has gone beyond the basic navy and charcoal grey, and has added stand-alone blazers and sportcoats to his outerwear arsenal. Why? They’re an essential for the office, a slam dunk for impressing dates and perfect for feeling sharp, you know, just because. Even more so than fall, spring is a season for sport coats. A small variety will net a huge array of options for looking stylishly grown up at any occasion. We found 20 of the sharpest, coolest and most wearable blazers for the season, and broke down a few of the biggest trends to look out for.