Patagonia Slingshot Down Vest: If your ideal setting for life is splitting wood, sitting by a crackling fire, and picking up your six-string to flat-pick chords then the Patagonia Slingshot Down Vest is just for you. The Slingshot vest establishes core warmth and leaves the arms free to attend all of your many manly ventures. The Slingshot's 600-fill premium goose down insulation does just that. Its 100% polyester ripstop shell fabric stops wind and has a crosshatch texture for a soft cottony feel. A smooth lining of 2-oz polyester makes for a supple, snag-free glide over layers.