I use this primarily for rock climbing. The tougher than normal outer shell means I don't worry about it snagging on crags. A detachable hood is nice as is the waterproofing. Best feature is the plethora of pockets, all of which are a good size, and of-course its warm as hell, or as close as you can get without sleeves. For colder conditions I combine it with a light fleece and long sleeve base layer to keep the freedom on movement I find hard to come by in sleeved jackets.