The Smartwool Men's Active Ultralight Long Sleeve Shirt was designed to keep you dry and cool this summer. The Ultralight fabric combines the moisture management, temperature regulation, and odor resistance of merino wool with TENCEL Lyocell fiber. The offset shoulder and side seams help increase comfort and minimize chafing.FeaturesAthletic fit is intended to be body-skimming to help avoid restricting body motionReflective elements to increase nighttime safetyOdor-resistant