This is a Black Diamond Frenzy 28L backpack for backcountry use. I purchased it here in January 2024 and have used it for about 5 backcountry tours. It's a 28L pack that can carry a snowboard, avalanche gear, a shovel, and has a front pocket for ropes and skins, as well as a zipper window on the back for access to the main compartment. *This might be more convenient than fully opening the pack in a blizzard, etc. Ski attachment for ski touring can be done in two ways as shown in the photos. The previous owner also purchased it here, and when I bought it, there was hydrolysis and aging. Specifically, there is peeling of the film on the top inside of the main compartment, the front lining, and the front zipper lining. Please check the photos. There are other stains and signs of use, but thank you for your understanding!