The Fly Racing Lightweight Base Layer Top XT3N is built for riders who stay active in cold conditions and need breathable performance without overheating. Featuring High IQ advanced evaporation technology, it uses hollow core fibers to quickly wick moisture away from your body and dry fast, keeping you comfortable during high output riding. The open fabric structure provides lightweight warmth while maintaining airflow, making it ideal for layering in variable northern conditions. Multi direction stretch fabric allows full range of motion, while flat lock seams reduce irritation during long days outdoors. Finished with UPF 40 plus sun protection and Polygiene odor control, this base layer is designed for comfort, performance, and all day use.