User Review: Mountain Hardwear Men's Beryllium Jacket
Price Paid: $200
This is by far the best shell i have ever owned. i bought this jacket for a 2 month canoeing trip up to the Canadian arctic tundra. the beryllium handled magnificently, keeping me dry through driving rains and 60 mile an hour winds.it is very light considering the number of features it has.
i have not used it for backpacking, but i think it will work fine for light weight trips.