Everlane The Ultrafine Merino Ribbed Cardigan in Small The Ultrafine Merino Ribbed Cardigan is made from—you guessed it, 100% RWS-certified merino wool. Form-fitting and oh, so soft, it features long sleeves, v-neck, and jersey detailing in the underarm. We love pairing this with our Way-High denim for a casual look. The Responsible Wool Standard (RWS) sets requirements for third-party certification to ensure that wool comes from farms that manage their land with a progressive approach,