WHY do some jumpers and jackets come with elbow patches? There was a time when elbow patches were used to lengthen the lifespan of a jacket or jumper. In days gone by men spent a lot of time on their elbows, resting on desks to stuff their pipes or leaning against fireplaces and pondering the cultural relevance of Lana Turner's angora jumpers. In recent seasons the elbow patch has emerged as a decorative feature, with brown suede patches adding a professorial air to casual ensembles. This trend is perfect for jackets worn with jeans or contrasting casual pants but don't let it extend to slick suits for the office. When the elbow area of your suit starts to wear out it's time to invest in a new one. Remember, this trend is only applicable to the elbow area. If you're over 12, patched knees are never acceptable.