The heaviness of your rain jacket depends on where you plan to wear it. If it’s somewhere the temperatures won’t dip too low, all you need is a light women’s rain jacket to keep the water off of you. But if you’re somewhere that could potentially chill you to the bone, you want to double up and get a rain jacket that is heavy-duty and waterproof. If you’re traveling, how packable the jacket is an important thing to consider as well. Speaking from experience, heavy women’s rain jackets do not pack into a suitcase as easily as lightweight pack jackets, which don’t insulate as well, so there’s a tradeoff.