I purchased this jacket for a cross country trip I was taking in May. The weather was going to unpredictable so I needed something that could handle it all. The Navigator didn't disappoint! The conditions on the trip ranged from 90's and sunny to literally 26 degrees and snowing! That morning started off as snow and then as I came down out of the mountains in Colorado it turned to rain. It never got above 45 degrees and rained for nearly 200 miles. Later that afternoon when I made it to Utah it was sunny and 80's. I removed all the base layers and opened the vents and was still comfortable when moving.
I will say that I was a bit skeptical about buying this jacket because the shell itself isn't waterproof. I wasn't crazy about having to zip in/out a rain liner. I've changed my mind on that. This jacket vents very very well without the rain liner in. I don't see how they could have made the shell waterproof and kept all that venting.
Pros Venting, Versatile, Comfortable, Great Value, Rugged