The old technology becomes new again. . . after giving up ponchos years ago in favor of Gore-tex, and then becoming horribly disappointed, I've started to favor ponchos again for warm weather rainy conditions because they are more versatile and vent more.

For example, you can raise up your poncho and take photos with your camera protected from the rain. Similarly, you can get underneath the poncho to read the map.

Obviously, ponchos have their limitations, but I think they are worth considering.
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