Thank you for viewing. I've made a compact rain cover that can be stored in a case in case of sudden rain. I made it to fit my viola case, which is 86cm long and 14cm thick, but it can also be used for larger violin cases. It would be about LL size for a 4/4 violin case and L size for a viola case. Please refer to the photos I've included, which show the cover fitted on my case. Please note that it will be quite large and loose on rounded carbon fiber violin cases. There are stoppers at the top and bottom, and you can make fine adjustments with the buckles. It's made of thin, water-repellent nylon fabric, so it's light and durable. The color is olive green, although it's difficult to tell from the smartphone photos. It folds up compactly and can be stored inside the case. I'm not very good at explaining things, so please ask if you have any questions. This is a one-of-a-kind item, so exchanges are not possible. Returns and exchanges due to customer reasons such as "the size didn't fit" or "the shoulder position didn't fit" are not possible. Please check the size of your case carefully. * Although I make each item with care, it is a handmade product, so please refrain from purchasing if you are concerned about minor imperfections. Thank you for your consideration.