The Royal Robbins Westlands Pullover knits a 60% merino wool and 40% recycled polyester blend into a 12-gauge Fair Isle pattern, balancing the softness and temperature regulation of merino with the added durability of recycled poly. A drop shoulder construction keeps the fit relaxed through the chest and arms, so the sweater layers easily over a base layer or stands on its own on a cool day. What Our Gearhead(R) Experts Are Saying:"I've worn this three days straight on a shoulder-season trip without a wash, and the merino kept it smelling fresh the whole time."