A technical zip-neck for warm weather trail running, the Accelero leverages two distinct performance fabrics to deliver optimal comfort and thermoregulation. Air permeable Helius™ on the front wicks away moisture and offers UPF 50+ sun protection. Smooth on the skin, it helps prevent chafing on long runs. On the back and shoulders, Viente™ mesh is used for increased airflow and cooling comfort. Composite Mapping technology is used to precisely place each fabric to maximize their benefits. A textile that provides protection from exposure to ultraviolet radiation. Use in sun or on snow. Allows moisture vapour to escape, helping regulate temperature and elevating comfort inside garment. Technical trail running systems with a focus on freedom of movement and moisture management. Maximizes user benefit through the strategic placement of different materials within the design.