What is a tri-blend?

Tri-blend shirts are comprised of three fabrics, most commonly 50% cotton, 25% polyester, 25% rayon. Tri-blend is soft, stretchy, and breathable. They are wrinkle resistant and generally a higher quality shirt. Because of this, tri-blends are often more costly than other fabric types. Tri blends also tend to have a slimmer, more "fashionable" fit.