The Mountain Warehouse Men's Summit II Base Layer Top is a versatile garment, crafted from a blend of 50% Merino Wool and 50% Polyester. This combination ensures a soft touch to the fabric, while maintaining a plain design for a sleek appearance. The round neckline and short sleeves provide comfort during various activities. The top boasts several technological advancements. It is anti-bacterial, ensuring freshness even after prolonged use. Its breathable nature allows for optimal temperature regulation. Additionally, it is lightweight and moisture-wicking, ideal for keeping you dry in active conditions. The fitted style offers a form-fitting design for maximum comfort and ease of movement. The sizing options include XXS (33 inches), XS (35 inches), S (37 inches), M (40 inches), L (43 inches), XL (46 inches), XXL (49 inches), 3XL (53 inches), 4XL (56 inches). Choose the perfect fit for your needs and enjoy the benefits of this innovative base layer top.