The Layer One Trail from rabbit is a lightweight, versatile thermal top designed for cold-weather running. Made with a blend of recycled polyester, spandex, and regular polyester, it features a breathable grid fleece, a tailored fit, and flatlock seams to prevent chafing. It includes a zip pocket for small essentials and has elbow patches for extra durability. Quick-drying and stretchy, it's perfect as a base layer or worn solo for colder days.