Funktionshemden (functional shirts) Business or casual, slim, regular or loose fit, flannel, silk or linen: shirts exist in many variations. A garment that has successfully proven itself for decades and offers an infinite wealth of colours, patterns and styles. This series of five functional shirts, all cut like the same classical men's shirt, shows the varieties of wearing options. Each shirt consists of a different material that proposes a specific usage to the wearer and at the same time still gives him or her the safe feeling of a familiar and neat look.