Mach Trout The Mach Series Trout lines feature a heavily-engineered compound taper that offers distance, control and presentation from both short to maximum ranges. The lines are built on a low-memory supple core with a durable, liquid slick, PVC impregnated coating. They also feature welded tip loops. And, of course, they are AFTM size specific to meet the needs of the most demanding single handed anglers.