Brooks Rock N Roll Savannah 1/2 Marathon Finisher T-Shirt Mens Fern 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 Flatlock seam construction protects against chafing Semi-Fitted: Contours to the body Soft, four-way stretch fabric with moisture-wicking properties for comfort on the go