Primary: 285 GSM 8.4-ounce 90% polyester/10% elastane - Secondary: 220GSM: 6.5-ounce 100% polyester - Built with Force technology to wick sweat and dry fast - FastDry technology wicks sweat and dries fast - Drirelease yarns for moisture management - Odor resistant - Strategic paneling supports breathability - Strategically placed flatlock seams reduce chafing - Brushed interior for added comfort - Concealed thumb loops - Tagless labels - Locker loops