Very waterproof - Rab Downpour Jacket - Men's

Put this through it's paces the day after I got it. Full day of torrential downpours. My upper stayed very dry. I got a large but could have gone a size bigger. This is just a shell and is pretty form fitting. I agree, these run a tad small. I would label this a summer rain jacket or business casual. Not much room for anything underneath.