The 2XU IGNITION BASE LAYER LONG SLEEVE is a high-performance base layer designed for athletes. It is made from a blend of polyester, rayon, and elastane, providing a comfortable and breathable fit. The fabric is moisture-wicking and quick-drying, keeping you cool and dry during intense workouts. The 4-way stretch construction allows for a full range of motion, while the flatlock seams prevent chafing. This base layer is perfect for a variety of activities, including running, cycling, and training.