I was blissfully happy with a Sugoi membrane hacker for a few years/rainstorms, and I liked it so much that inbought a second, better fitting one.

The first quite literally disintegrated in a heave storm, with the membrane peeling away from the mesh, and the second just stopped working after a couple of years. I now have the Showers Pass Elite, although It spends more time stuffed up in my panniers in case it rains than on my back.

Do jackets have a shelf life?