4.5-ounces, 100% ring-spun cotton, 30 singles, 1x1 rib-knit collar, 50/50 cotton/poly, Shoulder to shoulder back neck tape.
Combed ring-spun cotton does shrink when exposed to heat (expect about a 5% shrink rate). This means it should never be washed in hot water or dried in a hot dryer. Tumble dry low or hang to dry and Medium iron; DO NOT iron on the design. Mostly, to preserve the quality of the shirt, it is a must not use chlorine bleach.