Merino, alpaca or mohair? Choosing yarn is the single biggest decision of a first sweater project. Merino is forgiving and springy, alpaca drapes and warms without weight, and mohair adds that airy halo u2014 but each behaves differently on the needles.
Our rule of thumb: pick the fibre for the life the garment will live. An everyday sweater wants hard-wearing merino; a special-occasion piece can afford the delicacy of mohair and silk.
