This ultralight knit polo is crafted with breathable fabric under the arms and across the upper back to achieve a faster drying time. Quarter-zip neck can be unzipped for additional ventilation that doesn't require you to stop and remove layers on the trail. Contrast breathable fabric at pits and back yoke. Split vents at hem. Self collar. Flat-locked seams for comfort. Ultraviolet Protection Factor (UPF) 30. 70% polyester, 30% recycled polyester with FlashDry™. Machine wash cold, tumble dry low. Imported. Measurements: ; Length: 31 in ; Product measurements were taken using size LG. Please note that measurements may vary by size.