The Mountain Warehouse Women's Merino II Thermal Top is a long-sleeved, round-neck top designed for performance. It is crafted from an 80% Merino Wool and 20% Polyester blend, providing a comfortable fit while offering several technological advantages. This top boasts anti-bacterial properties to prevent odor, is breathable for enhanced comfort during physical activity, and utilizes Isotherm technology to maintain a consistent body temperature. Additionally, it features lightweight construction and thermal insulation for added warmth. Sizing options range from 18 UK (44 in.) up to 28 UK (56 in.), catering to a variety of sizes.