Baltic Drip
This sweater rocks - along with the Spanish commando sweater it's become one of my go to pieces for outdoor activities, range days, and general cold weather activity. The tight fit around the waist and the tighter forearm section with patching makes it very comfortable and form fitting - it doesn't snag on stuff like a lot of other wool gear.
Perfect for climbing, great with load bearing rigs overtop, and presumably also excellent for navigating around the tight quarters of a German submarine or Baltic patrol ship