The Ciele Men's FST T-Shirt 2 builds on a proven silhouette with upgraded recycled performance fabric. Constructed from lightweight COOLmatic | PLUS DIAMAmesh, this tee features a subtle diamond-texture knit that enhances moisture management. Cooling and anti-odor technologies are integrated into the fabric, while engineered side vents improve airflow during higher-effort runs. Reflective details add visibility in low light, and flatlock stitching with critical weld points helps create a smooth, streamlined finish.