We purchased a set of family members for emergency use. Because it is compact, it is saved because the exclusive capacity of emergency carry bag is small. It seems to be okay to order additional and simulate with camp. However, the feeling I saw was disposable, how about durability? is.
I bought it as a stockpile for emergency use. Although it is unknown although feeling of use etc., it is very good for stockpiling in a compact size. There seems to be some thicker, but it is temporary and definitely priced. It is a product that seems to be the best thing without a turn number to use.