This product is created with a seamless knit construction that helps prevent chafing so you can keep comfortable and focused. This top features ACTIBREEZE™ technology with the strategic body-mapped knit aeration zones that provide targeted ventilation, advanced breathability, and comfort. It's complemented with thumbholes at the sleeves for convenience for your daily runs. At least 50% of the garment's main material is made with recycled polyester to reduce waste and carbon emissions. Feature & Benefit ACTIBREEZE™ technology With strategic aeration in high sweat zones for increased breathability Reflective details are designed to help improve visibility in low-light conditions Details At least 50% of the garment's main material is made with recycled content to reduce waste and carbon emissions Material Information 65% Polyamide, 35% Polyester