On Performance-T Women's Running Apparel Denim/Navy : The On Performance-T for women is effortless in its design, but works as hard as you do to ensure optimal results. This seamless and tear-proof, fast-drying fabric keeps guys feeling light and comfortable through the run and afterwards. The moisture-control mesh at the front and back provides excellent airflow while the anti-bacterial treatment makes sure this shirt maintains freshness, wear after wear. Reflective On logo featured at left chest. Seamless, 4-way stretch Nylon/Elastane protective fabric with a moisture-control mesh panel for ventilation at the back. Features anti-bacterial treatment to maintain freshness. Special Sizing Note: The manufacturer indicates apparel fit as being one size down from size featured on label. Due to this note, we suggest sizing up from your normal size.