This crew is slim fit which helps reduced chafing and improves performance by closely following the body and supporting optimal moisture management and thermal regulation. This Merino Blend fabric uses engineered mesh in key areas to enhance breathability, Merino next to the skin to regulate temperature and control odor, and recycled polyester for superior durability and rapid drying. Flat lock seams and the absence of shoulder and side seams built to minimize chafing Watch window at wrist to give you easy access to your device without adjusting Mesh paneling added in heat producing areas to enhance ventilation and breathability Reflectivity to help keep you visible in low light conditions Brand : VRST Country of Origin : Imported Fabric : Merino Blend fabric, Merino Polyeser