Project Rock training gear was built to help you find boundaries, then push right through them. Everything in this collection was personally approved by Dwayne Johnson, the hardest worker in the room. ANY room. Heavyweight, soft cotton-blend fabric provides all-day comfort Ribbed collar Style #: 1376898 60% Cotton/40% Polyester Imported Loose: Fuller cut for complete comfort. Wash garment inside out Machine wash cold with like colors Use only non-chlorine bleach when needed Tumble dry low Do not iron Do not use softeners Do not dry clean