I bought this because it was said to be necessary for staying in a mountain hut during the COVID-19 pandemic, but I didn't end up using it. It's been sitting unused in a drawer for 3-4 years. Although I haven't used it, I've carried it in my backpack, so I'm listing it as "like new." I'm also selling an orange one, so please take a look. If you're considering buying multiple items, please feel free to negotiate the price.