Our ALRN Merino Zip Hoodie is made from merino wool and recycled polyester, derived from post-consumer plastic.This style is mid weight, with a brushed interior and thumholes at the cuff, making  it the ideal piece for a crisp early morning run or late evening workout. With the added benefit of being thermoregulating, this sweatshirt will keep your body temperature consistent during and after a workout.