Ridgeline Men's Baseline Pull-On Zip TopThe foundation of a functional layering system. Our Baseline Zip Top is a functional base layer designed to be worn next to the skin in mild conditions or as the first layer in a clothing system in colder winter weather. Its made from a combination of hard wearing, quick drying polyester and comfy, natural cotton in a hardy 200gsm weight. It features a ventilating neck zip and, for ease of movement, a functional raglan sleeve construction. Functional