When you buy through our links, Business Insider may earn an affiliate commission. Learn moreWe tested 24 women's rain jackets in the Colorado Mountains and New York City.Rachael Schultz/Business InsiderThe difference between a good rain jacket and great rain jacket becomes evident the moment you're caught in a backcountry rain storm or pouring spring shower while walking around the city (even the best umbrella can only keep you so dry, after all).