Dog Outfits - Nantucket Sweater - as part of the expert series by GeoBeats. Katie is wearing the canine styles Nantucket sweater, which is an American classic. It is 100% wool sweater. It is hand-knit. We do it from a Chihuahua right up to a Great Dane. They range in price from $45 to over $100 for the really, really big guys. It has a wonderfully well proportioned arm holes. It has the little turtleneck collar. It is put on right over the head. It hugs the body. It keeps the dog very warm, ease of movement and it is a great fashion statement in New York City.