Champion Cotton Jersey Men`s Muscle Tee,T2231" /> Solids:100% cotton. Oxford Grey: 90% cotton/10% polyester. Granite Heather: 60% cotton/40% polyester. Soft, substantial cotton feels comfortable year `round. Shape-keeping 1x1 ribbing reinforces neck and armholes. Full athletic fit guarantees ease of movement. Durable double-stitch trim resists raveling and rip-out. Tag free for itch-free comfort.