The new TITAN 21.5 has automatic valves which reduce the chance of exploding the kite by highpressure shock waves while crashing the water. This allows us to save weight for a better low wind performance. Compared to a corresponding inflatable the TITAN 21.5 has only 50% of its weight!! The blow-off-valve opens up when there is too much air-pressure inside the kite and closes fast and automatically afterwards. The Ram-Air-intakes fill up the lost air so quick that the kiter does not realize anything!