wmgardner, I've taken her out today in some heavy rain and they have stood the test thus far. As stated the velcro I am using in an industrial type, it has a much better adhesive backing and heavier loop/nap. I have to pull at a pretty decent force to remove it. I may add a bolt or two at the bottom to help "anchor" it some. I have since rounded the bottom a bit, a little personal touch just to satisfy me.