65% cotton, 30% polyester, 5% spandex. ClimaLite interlock jersey with hydrophilic finish; rib-knit collar with contrast three stripes on back of neck; contrast tipping on collar and placket; four-button placket; open-hem sleeves; tonal performance logo on right sleeve; tonal rib-knit side panels; ClimaLite side-seam label on left front.