Where might one be able to purchase a shawl collar sweater?

Shawl collar sweaters can be found at J.Crew or Abercrombie & Fitch. For sweaters specific to men, Brooks Brothers carries mid to high end shawl collar sweaters. A wide variety of brands and styles of shawl collar sweaters, for both men and women, can be found at local department stores such as Nordstrom or Macy's.