My Olympia gear does not leak at the vents, as long as I have the vents closed and the velcro cover secured over the zippers. I imagine that if I did ride in the rain with the vents open, I would get water intrusion through the vents. A friend of mine has a Roadcrafter suit, and after using it and my Phantom, feels that the Phantom is considerably more water-resistant than his Roadcrafter.
Snohomish County, Washington USA
2012 Suzuki DL650A as the current bike
Whole bunch of bikes in the past