The X-Bionic Symframe Jacket is a running jacket with effective body temperature management. While the wearer is running, moist air accumulates under the jacket and sweat droplets form. Patented SpaceFram-Technology supports the symbionic membrane in transferring the sweat to the outside. And as warm air rises upwards, the cleverly devised air conduit system at the back transports the moisture towards the collar, where the diffuser design ensures that it ultimately makes its way out.