Brooks Rock 'N' Roll St. Louis Short Sleeve T-Shirt Womens Midnight Blue Hatch Looks just like cotton, but packed full of technical qualities, including powerful moisture management to keep you cool and dry Classic styling makes this an everyday, versatile basic Underarm and back mesh keep it breezy Flatlock seam construction protects against chafing Soft, four-way stretch fabric with moisture-wicking properties for comfort on the go