The Base Layer Elevated There are crewnecks, and then there's the women's Burton Phayse Merino Crewneck Base Layer. It's the lightweight merino blend yarn that sets it apart from the crowd and gives it real-world breathability and temperature regulation credentials. Wear it riding. Wear it hiking. Wear it daily. Any which way, it has you covered with all-natural temp regulation and easygoing comfort. Features: All-Natural Merino Power Merino wrapped nylon core yarn puts 100% merino against the skin for natural temperature regulation, breathability, and stink-free comfort. The nylon core adds strength for long-term fabric durability. Vented Merino mesh panels add extra breathability where you need it most. All the Tech Stretchy, breathable, and super soft. It's ready for a workout. Tech Specs: Fit Next to Skin Fit Features + Tech Chafe-free Softlock Seams for Comfort Designed For Ultimate Layering Performance Double Needle Stitching on Sleeves and Hem High Merino wool content (+50%) provides excellent natural thermoregulation and odor control Locker Loop Maximum Warmth with Minimum Weight Next to Skin Fit Odor Reducing Quick-Drying and Highly Breathable Strategic Fabric Placement for Warmth and Breathability Where you Need It Stretch 360° For Unlimited Mobility Imported Yes Venting Venting Mesh Piecing Fabric Merino Single Jersey, using Rapt™ Yarn 87% Merino/13% Nylon (16.5 Micron) Pieced with Venting Mesh ReRAPT™ Yarn 49% Merino /51% Nylon. Warranty Lifetime Warranty Sustainability Responsibly Sourced Wool (RSW) Burton Women's Phayse Merino Base Layer Crewneck - True Black | Shop Shirts & Tops at Trojan Wake Ski Snow & Snow Skiers Warehouse