You might consider buying the Montbell UL Down Inner parka or jacket, plus the UL Down Inner vest to layer with it. You'll end up with the same total weight as the Patagonia down sweater, but you'll gain the versatility of adjusting your insulation to fit the needs of a particular trip - and can leave one or the other behind if you don't need both. The versatility will cost you about $50 (the two pieces together cost about $50 more than the sweater - you may be able to find the Montbell pieces on sale and eliminate that price difference.)