10.7 to Yellow Stone, see temperature display -3~11 degrees, should southerners wear thick down jackets ?

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QEEQ User

Just back from Yellowstone, met with rain, the first snow and sunny days. If it doesn't rain, a thin down jacket is enough, rain plus a thin sweater is okay. A thick down jacket is inconvenient to use after leaving Yellowstone.

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QEEQ User

Thinsulate vest