ChampionMen's Stadium Packable Jacket, Wind Resistant, Water Resistant (Reg. Or Big & Tall)

How does it run? I’m skinny and use usually a M but I like it a little big.

Iam 5’11 bout 220 what size do I need

Does it fit true to size i usually wear a 2xl in everything except northface hoodies which I have to size down to a 1xl

Is it waterproof?