Details When it comes to your outdoor activities, comfort is key. That's why the Men's Intraknit™ Merino Sport Vest was designed to amplify your comfort and movement during high-intensity activities while keeping you warm and dry with knit mesh ventilation and knit wind protection. Gear up and get after it with a Sport Vest that can go the distance. Material Front Panel: 100% Polyester. Back Panel and Collar: 53% Merino Wool, 45% Polyester, 2% Elastane. Exclusive of Decoration. Fit Athletic Fit Details Smartwool's athletic fit is body-skimming, enhancing the body in motion Featuring Intraknit™ technology: Insulation, articulation and ventilation are seamlessly integrated to amplify movement and comfort during high-intensity activities Knit front panel provides a balance of wind protection, breathability, and warmth Seamlessly knit mesh ventilation designed to keep you dry and comfortable Ribbed back panel provides ultimate mobility Two secure zippered pockets Weight N/A Smartwool Intraknit Merino Sport Vest Men's