Great ski mountaineering pack. I use this pack for Ski patrolling and my personal ski adventures. I like the fact that you have 2 options for ski carry (diagonal and A frame) and that the diagonal carry strap is retractable for when your not using it. The removable straps and helmet holder are nice touches allowing you to customize the pack to your style (even works for snowboards). 2 ice axe loops are nice as well. The velvety lined goggle pocket works well for your phone, glasses and other small odds and ends. 2 spacious compartments accommodate all your gear. The smaller rear pocket holds all your avalanche gear and even has a sleeve for your probe, the larger one has a side access zipper and holds extra layers, skins, FA kit, everything needed for a day in the back country. You can also strip the waist belt to save weight. My only complaint is that it's harder to mount a knife or radio harness to the shoulder straps than other packs, but I assume this is not a commonly sought after feature of a pack. This pack also works very well for summer day trips or even over nighters. this pack can do everything almost all other specialty packs do in the same size range. Bottom line: Mammut quality and multisport capability.