"Made with frogg toggs’ breathable, non-woven fabric, this men’s rain suit is waterproof, wind-resistant, breathable, and extremely lightweight and packable."
It was a quick buy when I needed something while out boating... Some inexpensive $50 type wind breaker/waterproof/breathable purchase.
I began wearing it beyond the boat weekend and it's simply one of those random, "hey, this breaths, blocks wind, and rain and super light/comfy!"
Take it for what you will though @brymoore may have used it more frequently based on his not bombproof comment.
