Unleash your running potential with the X-BIONIC® COREFUSION RUN SHIRT SS MEN. Designed to work with your body, not against it, this shirt boasts a ground-breaking CoreClimate® zone that delivers unrivaled thermoregulation. Whether you're sprinting in the sun or jogging in the chill, your core body temperature is maintained at a performance-optimal 37°C, allowing you to save your resources and focus on your stride. The secret to this intelligent temperature control is the HygroDiffuser® with VectorSphere®. This innovative feature combines a highly sensitive sweat-wicking base with 3D knitted channels. The result? A network of air pockets that cleverly retain body heat when you're cool and trigger a cooling response when you heat up. As you run, sweat is dispersed across a larger surface, ensuring you stay comfortable and dry. By maintaining the optimal core body temperature, this shirt helps you conserve energy, allowing you to run further and faster.