Trail running; Training Quick-drying and sweat-wicking fabric keeps you dry and comfortable. Polygiene® treatment keeps you fresh run after run, reducing wash frequency for sustainability. Patented AirBridge Technology creates a sweat-wicking channel for faster evaporation and zero cling. Chest zipper for heat dissipation and quick on/off. Strategic mesh underarms enhance ventilation, expelling heat to maintain coolness during strenuous activity. Seamless back design for irritation-free comfort and superior stretch. Thumb hole keeps sleeve in place during workouts. Reflective prints enhance visibility during night runs. Fit: Athletic