YogaColors Eco-Jersey Thumbhole Sleeves Open Wrap Cardigan 50% polyester Both comfortable and stylish, this open cardigan features a super soft eco-jersey construction, ribbed arms, thumbholes, and banded waist. 20's Eco-Jersey: 50% Polyester (6.25% recycled), 38% Cotton (6.25% organic), 12% Rayon Imported.