This minimalist-style crew is anything but insignificant. Our Men's Intraknit™ Thermal Merino Base Layer Crew is a lightweight, super-moveable top, made for all of your most extreme cold-weather activities. With Merino Sport yarns and gender-specific ventilation perfectly placed to maximize thermoregulation and breathability in high-intensity activities, it helps amplify moisture management, movement, and comfort. When you're in our best base layers, you're ready for anything.Features Slim Fit Merino Sport yarn combines the power of Merino with the durability and fast dry times of polyester Engineered construction uses knit structures to enhance performance with lighter weights and cleaner finish Mesh ventilation seamlessly knit in gender-specific zones designed to keep the body dry and comfortable 3D mapping results in near custom fit and freedom of movement while ribbed elbows provide added durability Knit in India: 53% Merino Wool, 45% Polyester, 2% Elastane Garment Weight: 208 g = 7.34 oz