Champion Cotton Jersey Men's Muscle Tee_Crimson_XL Solids:100% cotton. Oxford Grey: 90% cotton/10% polyester. Granite Heather: 60% cotton/40% polyester Importado 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.