Although the Packa is my rain gear now, I did add an important modification. When wind blows rain straight at my front, the zipper leaks, causing a wet cold feeling against chest and mid-drif. Solution was to add a silnet lining on the inside just wide enough to cover the zipper. I thought of adding a waterproof zipper, but could not find one long enough. Another problem: I needed to get first aid gear out of my pack during a rain. Either I had to get wet or the pack gets wet. I have now decided to pack a rain-cover which I will use only if I have to take the pack off in the rain.
Another feature I like about the packa is its length. It covers the bottom of my shorts, so they stay dry.