Jamie Haller The Weekend Shirt. A shirt after my own heart, based on a shirt from my husband’s closet, a men’s style staple I steal over and over. Nothing revolutionary except our lovely casual cut, the celebration of crisp quality poplin made in Japan, with well fit shoulders, a long sleeve and a nice collar, A shirt with width enough to billow open when buttoned down to that perfect place on the breastbone, loose enough to look lived in and effortless at the same time, and still structured enough to look pulled together.