85% organic cotton and 15% post-consumer recycled polyester. Combed cotton. 3-ply brushed fleece LSF (Low Shrinkage Fleece: pre-shrunk fleece). Enzyme-washed. Elasticated waistband in 1x1 ribbing with round drawstring made from organic cotton. Buttonhole eyelet for waistband drawstring. Side pockets and one back pocket with piping. 1x1 rib leg hem. No brand label, only a tear-off size tag for easy decoration.