This fluffy sweater is made from alpaca and responsibly sourced wool. has a comfortable oversized silhouette. Ribbed trim complements the look. Wool comes from sheep , not fattened in mules and certified to the Responsible Wool Standard (CU810300) independent and voluntary standard that guarantees that wool from certified farms can be correctly labeled and traced through all stages of processing.. The purpose of the RWS is to protect sheep, which provide wool and soil on which they graze.