Smartwool Men's Active 1/4 Zip

Combining comfort and performance in a stylish package, the Active 1/4 Zip from Smartwool combines the breathability and temperature regulating benefits of Merino Wool and the quick drying of recycled polyester so you can work hard without overheating. Plus, mesh ventilation under the arms and on the shoulders add breathability so you can push your workout in all conditions!