Merino Wool Ribbed Cardigan. Looking to sustainably warm and stylish this winter? Check out this Merino Wool Ribbed Cardigan from Everlane. This cosy cardi is constructed using 100% RWS-certified merino wool. It features long sleeves, v-neck, and jersey detailing in the underarm. The beautiful shiny button downs make it a stand-out sustainable fashion piece this winter. Available in 5 different shades.