evo.com | Smartwool Activewear Tees > The Smartwool Active Mesh Short-Sleeve Shirt uses a merino and Lyocell blend up front for natural moisture management and a soft feel against skin, while mesh panels across the sleeves and back maximize airflow where you run hot. Regular Fit Targeted Mesh Zones Locker Loop at Neck Interior 38% Merino Wool / 33% Lyocell / 29% Polyester Reflective Elements | Women's Smartwool Active Mesh Short-Sleeve Shirt 2026 - Large Blue | Wool/Polyester