As typical with Gore's windstopper fabrics, does a great job in that regard and although couldn't test it's rain shedding abilities, will trust as typical for WS. However for a designated 'rain' jacket the color choices are dreadful: 'kill me black' or show all rain spots forever white... ugh. When it's raining and the asphalt pavement is glistening and black, I don't want a glistening and black jersey which is essentially asphalt camoflauge. Sure white is more visible and the safer choice but any poly white fabric will grab and hold stains forever. Please make this jersey in bright red, Cyan blue or yes... flour yellow and it will be perfection.