Review on Golf Rain Towel Waterproof Cover by David Fields

I bought this item because my school bag didn't come with a rain cover. So I was forced to find an alternative that would look reasonably normal with the rest of my bag. It doesn't come with instructions, but that's okay because we golfers are pretty smart, right? I've played with it and appreciated the concept, but I'm sure the next downpour I get with little wind will blow my new raincoat down the fairway. Maybe vinyl ties are needed or maybe a rock.