Pittsburgh clothier David Alan builds business with e-commerce.

Pittsburgh clothier David Alan builds business with e-commerce.

BY DAVID CONTI - TribLive - Business
David Alan's business model is all 21st-century e-commerce.
His eponymous Pittsburgh-based company has no brick-and-mortar showrooms. His marketing of custom-made suits and a necktie accessory called the Proper Knot relies on them being worn by sports figures with big social media followings.