Smartwool Intraknit Merino Tech Beanie 4017-SW002437 Featuring Intraknit™ technology: Insulation, articulation, and ventilation are seamlessly integrated to help with movement and comfort during high-intensity activitiesKnit-in wind protection around the ears and across the foreheadTargeted mesh ventilationShaped for a performance fit Smartwool Intraknit Merino Tech Beanie