If you are someone who enjoys spending their winter days adventuring in the mountains, you need a high-quality base layer top that will keep you warm and dry for hours on end. Of the many brands in the outdoor industry today, Smartwool is the one to trust when it comes to technical pieces. Guaranteeing maximum warmth and protection, each of their quality products are designed for high performance and long-lasting protection from the harsh winter elements. With the Classic Thermal Merino Base Layer Men’s Pattern ¼ Zip, it is made with 100% merino wool fabric, which is among the top materials known for providing unbeatable warmth and insulation. Providing superior breathability, thermoregulation, and odor resistance, it features a slim fit and updated design, making this base layer perfect for any activity. With style and function in mind, the shoulder panels and flatlock seams help to minimize chafing while also keeping you exceptionally comfortable and temperature regulated. It also helps to improve functionality while drastically enhancing aesthetics. So whether you're hitting the slopes or just hitting the town, the Smartwool Classic Thermal Merino Base Layer has you covered.