The Performance top is constructed from 100% eco-friendly polyester body fabric, which is a highly sustainable and low carbon source of polymer yarn. Similar to Luta's Speed-tech top, the under arms feature antibacterial stretch airtex vents to keep you cool and the fabric is snag resistant. Unlike the Speed-tech top, the fit on this is more fitted, as Luta designed this shirt for cross-training or gym/circuit workouts. The polyester fabric is quick to dry and wicks moisture away.