Size: Medium / Large I don't remember the exact purchase date, but I think it was about 5 years ago. I used it about 10 times for day hikes. The zipper on the waist is rusty and a little difficult to open and close. Also, there are scratches and stains as shown in the photos. I checked carefully, but there may be oversights. * The included backpack cover is not included. It has been washed. I have injured my knee and have decided to stop hiking, so I am selling it. I think it can still be used actively. If you understand the above points, thank you.