moosejaw确实没有rain jacket分类，谢谢指正。backcountry 里rain jacket和technical shell确实也有重复，但是你也的确可以把technical shell当rain jacket使用呀，虽然有点浪费。如果你觉得backcountry分类不合理，outdoorgearlab的分类应该算合理的吧，（http://www.outdoorgearlab.com/clothing-mens），这是他们描述hardshell和rain jacket的一篇文章：
Hardshell versus Rain Shell
When they're new, hardshells are no more waterproof than rain shells. Making a fabric waterproof is easy. What's hard is making a fabric waterproof and breathable, and making the material durable enough to retain its water resistance and breathability over time. If you measured the water resistance of shells over time and plotted that against price you'd see a strong correlation: more expensive shells stay waterproof for longer.
Hardshells, which represent the best of waterproof breathable technologies, are made with better materials and with better construction techniques than rain shells. Choosing between a hardshell (which cost an average of $500) and a rain shell (roughly $150) comes down, ultimately, to durability. Do the activities you participate in, and the places you go, warrant the more durable jacket?
We believe that rain jackets will be best for the "average user" because they provide reliable waterproof protection and reasonable durability. If you find yourself sprinting to the car or the coffee shop in the rain more than you find yourself through hiking the Pacific Crest Trail or alpine climbing, then a rain jacket is likely a better buy. Rain jackets are more than capable of backpacking trips and some of our testers have brought them on extended travel trips to places like Antarctica . A hardshell jacket is ideal for hardcore users that travel though high abrasion environments or who spend extended periods (weeks to months) outside. Hardshell are unquestionably a better. They have better materials, are constructed with more advanced techniques, and have higher quality and better-designed features (hoods, pockets, zippers, adjustment cords). You can't go wrong with a hardshell. But do you really need the Ferrari or the V8 Turbo Diesel?
