Abstract: A bladderless inflatable kite usable to propel humans, wherein the kite foregoes some or all conventional bladder structures. A bladderless or partially bladderless inflatable kite reduces the weight, and reduces problems associated with rubbing between the bladders and the outside layer, or the like. A bladderless kite structure is formed of a material that comprises a laminated mix of carbon and polymer filaments into a laminant structure wherein unidirectional prepreg tapes of in-line plasma treated fibers are spread to mono-filament level films and bonded with a UV absorbing titanium resin.