88% polyester/12% elastane Coolcore® with color secure® technology that helps prevent dye migration * Coolcore® is engineered to distribute moisture quickly throughout the garment. As the moisture spreads it dries faster and keeps you cool and comfortable, and has UPF 50 sun protection. * 4-way stretch properties allow for increased mobility * Garment protects against the sun with 50+ UPF * Wicks moisture * Tagless label * Three-button placket * Set-in sleeves * Side vents *