Underwear. Pretty much everybody wears it. It’s the basics. But for the underwear (and more) brand Mack Weldon, reinventing men's basics is keys. They believe in smart design, premium fabrics, and simple shopping. And it’s the building of community and loyalty strategies that make this brand a perfect fit for more and more men. Brian Fesen, Head of Marketing, joins Marc Raco and Rob Sanchez on location at Commerce Next in New York.