【Price Reduced】 This is a Montbell Compression Cap, size M. How about preparing for tent camping this coming season? It is new and unused, but has been opened. I bought it to compress my sleeping bag for mountain climbing, but I am selling it because I haven't had the chance to use it. This is a convenient item for further compressing compact Montbell sleeping bags, allowing them to be stored in backpacks and other gear with less space.