The Sonic Ultra is the ultimate mountain running tank for when temperatures climb and intensity peaks, bringing a weightless, airy feel to every step. Built with our rapid-drying, fast-wickingDryflo™ Airfabric with airflow technology and additional vent holes, it’s crafted to keep you cool, fresh, and sweat-free on steep inclines and technical trails. With an ultralight, racerback design, it’s optimised for efficient movement and pairs comfortably with your hydration vest. Highly breathable, adaptable, and responsive to your output, it’s ideal for pushing the pace and running in the heat.