Engineered for precision breathability and dynamic comfort Zoned Ventilation – Strategically placed ventilation panels deliver powerful heat dissipation, keeping you cool and dry even during intense runs. Adaptive Stretch – Soft, high-elastic fabric provides a close yet comfortable fit without restriction. Performance Details That Matter Watch Window – Train seamlessly while monitoring your heart rate without rolling up your sleeves. Thumbhole Cuffs – Keep sleeves securely in place and reduce shifting during movement. Reflective Accents – High-brightness reflective elements enhance visibility and safety for night runs. Autumn/Winter Upgrade - The AW version features thicker, stretch-enhanced fabric, offering core warmth in cooler conditions while maintaining freedom of movement and a snug fit without tightness.