Coleman backpack, trekking poles, crampons, and sleeping bag set. The backpack was purchased here in very clean condition and used once for mountain climbing. It has a large 40L capacity, so it can be used for overnight mountain climbing. It functions well, and in particular, there is a mesh pad on the back, so even if you sweat on your back, the pad creates a gap between your back and the backpack, so you don't feel the sweat sticking to your back. Also, I don't know if it's because of the gap, but I didn't feel the weight of the luggage much when I carried it because of the pad. (This is a personal opinion.) A rain cover is built into the bottom, which is convenient. Although it is in a clean condition, there are small stains from when I received it. Since I will not be climbing high mountains anymore, I will sell it to someone who can use it. For those who are planning to climb mountains in the future, how about it? Regarding used items, please purchase if you understand that they are used.