Flex-core construction creates a more rugged canoe than our Ultra-lights and is meant for general paddling on all but extreme waters. In these canoes, a structural core is laminated into
the hull, with the composite fibers carefully oriented to distribute loads.
The entire hull receives an extra fabric layer, which makes for a stronger, more ridged canoe.
Side ribs are not needed because this layup distributes more material throughout the hull. The result is a tough canoe that is still fairly lightweight.