Heavyweight crew fleece 13.5oz/450gm ring spun cotton Double ribbing side panels for stretch Reverse coverstitch sewing on all seams Embroidery on chest · 70% cotton / 30% polyester Heavyweight crew fleece 13. 5oz/450gm ring spun cotton. Double ribbing side panels for stretch. Reverse coverstitch sewing on all seams. Embroidery on chest. 70% cotton / 30% polyester. SKU: 101500001.