100% cotton. Pimp those specs with Hoffmans newest and cutest Sew Into It! kit featuring Me + Yous Indah Batiks. Susan-Claire Mayfield, aka The Gourmet Quilter, designed the fun and fashionable case dubbed the Eye-Catcher. This kit includes all the precision-cut pieces you need to make three cases — one for you, one for mom and one for your BFF. No templates, no paper, no Y-seams. Thread and love is all you need!