The PRO Hypervent Singlet 2 is a lightweight pro-grade running singlet that offers exceptional ventilation and cooling for maximum performance in warm conditions. This technically advanced singlet is made from lightweight and highly functional jersey fabric and features a perforated back for superior cooling. Additionally, the singlet has taped seams that minimize chafing and maximize comfort. Hypervent is a hyper-light and hyper-breathable pro-grade concept that enhances performance for demanding runners. Thin, super-soft, and exceptionally light and breathable fabrics provide superior function, ventilation, and comfort while running at high speeds and over long distances in warm conditions.