The Arc'teryx Rho LT Zip Neck is a high-performance base layer crafted from Polartec® Power Stretch® fabric, providing excellent warmth and moisture management in cold-weather activities. Its lightweight yet cozy microfleece lining offers warmth while wicking away moisture, and the zip neck allows for ventilation and temperature control. The next-to-skin fit, flatlock seams, and Arc'teryx's renowned quality make it versatile and comfortable for skiing, snowboarding, hiking, and more. This base layer is an excellent choice for those seeking top-tier performance and style in their outdoor apparel.