The present invention generally relates a composite material containing fibers and a resin matrix that comprises a PEEK-PEoEK copolymer having RPEEK and RPEoEK repeat units in a molar ratio RPEEK/RPEoEK ranging from 95/5 to 5/95 in contact with at least a part of the surface of such fibers. The present invention also relates to methods for making such composite materials, shaped articles made from such composite materials, and methods of making such articles.