Well, I've had that Highway 21 mesh wonder jacket Leonard recommended for a couple of typically torrid July weeks here in Virginia. It sure does the job, let's lots of air flow through (especially at the armpits, which is pleasant in a way that might have been frowned upon by the nuns at Our Lady of Perpetual Gloom), has at least some modern armoring in the shoulders, elbows and back, seems pretty well made--especially the zippers and other fasteners, which can be a real weak point in bargain outerwear. So yeah... definitely grab one while you still can if you need a warm weather jacket. It also has a little zip-in liner for cooler climes, which comes in it's own handy little cinch bag, though I obviously haven't used it yet. I doubt a fella could do better for the closeout price, at just $65 plus shipping. Sure, I'll still be using my frumpy old J.Crew for "warm" weather, but when that Mercury really spikes, I'll be grabbing for this new-fangled space age rig. Thanks again for the tip, Leonard!