100% Carbon Prepreg constructed RDM. The lightest and best performing wave mast available. We recommend this mast for pro performance on all our wavesails. The reflex response is the quickest of all our RDM masts, giving your sail an unsurpassable direct and responsive feel. RDM 10 is a unique product, both in performance and durability. For this reason we offer a 2-year unlimited warranty.