Knit-in ventilation Raglan sleeves Reflective details Ergonomic design Slim fit Surpass your personal best with Nike's Dri-FIT Knit Short Sleeve Running T-Shirt, designed to keep you cool and focused. Dri-FIT fabric technology helps to keep you dry and comfortable, while knit-in ventilation with mesh zones regulate your body temperature. This slim fit top has raglan sleeves and an ergonomic design allowing a greater range of natural movement.