2XU Active Tri Singlet 2014: Built for exceptional comfort & durability, 2 X Us Active Tri Singlet utilises SBR Skin X fabric with moisture management, & mid gauge construction for ventilation. Also features flatlock stitching, front semi-lock zip & rear angled pockets. SBR Skin X: Powerful 70D elastane for muscle support & enhanced performance. Excellent stretch & recovery memory to move smoothly with the body Flatlock stitching: For superb stretch & smoothness Contoured panelling 2 rear pockets Front semi-lock zip