This 100% Carbon paddle from Sandbanks breaks down into 3 pieces and is full adjustable to suit all sizes. However, because it is 100% carbon, it is incredibly light and only weighs 679g! (The standard fibreglass one is 1,000g.)
The carbon paddle has virtually no movement or flex meaning you waist no energy while paddling. If you are looking to dramatically reduce the effort required to paddle for this is the way to do it.