This is our effort to keep electric bike or e-bike or ebike(whatever you call it) safe and dry. We are using a low-key grey color for the outer layer. The color does not look so good. (say it professionally "the color is not aesthetically appealing"), but that's the point. It suppose to look crappy so no one bothers to steal your "crap". As for the inner layer, we had another layer of silver coating to further lower temperature. it also enables the usage the inside out on extreme hot days. Protect your battery from overheating. We figured that you may want a carrying bag. We included a mesh carry bag, which helps keep the cover dry. We hope those improvement helps.