135gsm performance fabric. H2O-DRI fabric wicks sweat to help keep you dry. Raglan seam construction. Self fabric collar with 2 button placket. Perforated fabric for added breathability. Fastlane clip and custom back neck label. H2O-DRI heat transfer. 90% polyester / 10% spandex. Machine Wash Cold (30C);Gentle Cycle / Use Non-Chlorine Bleach If Needed / Tumble Dry Low / Cool Iron / Dry Cleanable / Do Not Iron Design