The Attack was designed specifically as a river boat. Hank McGregor has won the multiple Berg River Marathons in this boat and Andy Birkett has won the Dusi and Non-Stop Dusi in it too.

This K1 has had great success on flat-water marathons too, winning the 2011 World Marathon Championships and 2013 U23 World Marathon Championships. It has good maneuverability and a high cruising speed. It requires little effort to keep it on a plane, which is crucial for a marathon boat. This boat comes with the option of a higher foot-box area to accommodate paddlers with big feet more comfortably.

It can take a paddler of up to 80kg on a river. It has a round hull from the nose through to the tail, with a full tail giving good volume preventing the tail from sinking into the water, alleviating the porpoise effect that can occur in boats and ensuring good speed through a turn. This is the ultimate river boat for the lighter paddler.