Sorry I wasn't able to answer sooner, had a funeral this weekend, that my family has been waiting 2 months for. First, let's say the 15% will go through the end of June, how's that sound? With the response, we will probably be making a bag for them to store them. They were not designed with a bag originally, so everyone who has had them, if they did get stuck in the rain, just placed it in the trunk. Thank you for the kind words everyone about the product. It holds by a unique hidden latching system, and the rear lip that is under the trunk lid. We wanted the exterior to be free of latches. If you have any questions, or want any other photos, please email me.