The Infinity has four torso vents, two on the chest and two on the back. It does not have vents on the legs or arms. The zippers are TiZip storm-proof zippers.
I am 5' 11.5", 185 lbs., and have a 36" waist. The XL fits me perfectly. My local store was able to order one so I could try it on before purchasing. Unfortunately, the one they ordered was the all-black suit. Besides not wanting to roast in the California sun, I wanted much higher visibility. So I plunked down my coin (well, $1200 anyway), and they ordered the light grey suit for me. In my opinion, it is very stylish. My wife's reaction upon seeing it for the first time was: "Why don't they make these for women???" Good question. Anyone at Rev-It want to answer?
Here's another pic of me on my bike:
It takes about twice as long to put on the Infinity than just putting on my Cayenne Pro riding jacket, but considering it is offering the same level of protection for my legs too, I am not disappointed.
Is the Infinity expensive? Hell yeah. Is it worth it? A much harder question to answer; I hope to never find out.