How is a carbon fibre kayak different from a fibreglass or Kevlar boat?
There are a few manufacturers building “carbon fibre” kayaks. You can tell the carbon fibre by the jet black colour resulting from the process used to make the cloth. They are almost always left visible by using a clear resin to the outside so as to display the high-tech fabric. Carbon cloth is very stiff (stiffer than Kevlar) but lower in tensile and compressive strength. The advantage to carbon is the chance to use even less material than a Kevlar boat resulting in even less weight. These boats tend to be very costly and somewhat brittle.