I'm outdoors in all weathers and I'm yet to find a jacket that is 100% waterproof. I have owned expensive coats from Barbour, Le Chameau and now a stupidly expensive Durburry that's the closest to 100% that I've ever found however it's anything but light. Bit nice for fishing, at least it is if you get in the same mess I used to. I had a Regatta which was very light and supposedly waterproof however it was too small so never got a thorough testing. The North Face are good but will let in if it rains heavy enough for long enough. Carharrt coats are popular with some of the people I work with. I have one which I've not had long. Much lighter than the Durburry, not as warm but not had a proper test in wet weather. I covered an event with two ladies who started the day smugly in their matching expensive Musto coats and watched as they changed colour as they took on more and more water. They had three changes of coat and still ended up soaked to the skin. It was a very wet day though.