I've watched a bunch of Klim, Rukka, Rev-It, etc., reviews where there is a lot of discussion about venting. I'm interested in the Darien—just seems like more of a simple waterproof solution—but it looks like the jacket only features underarm vents and a back vent. Nothing up front, nothing in the sleeves. I suppose this makes for better water protection, but...does this thing move any air? I'm picturing myself cooking behind a windshield in early August. Thanks.