A method of construction of a moulded product which includes the steps of impregnating non-metallic fibres in epoxy resin whereby said impregnated fibres may be arranged to form a sheet of said fibres； cutting a plurality of pre-pregs from said sheet； forming successive layers of said pre-pregs so that said layers are arranged in stacked relationship (preferably formed of pre-pregs having fibres arranged in an intersecting orientation which alternate with pre-pregs having fibres arranged in a longitudinal and/or latitudinal orientation) in a mould cavity of a compression mould； compression moulding at elevated temperature； and removing the moulded product from the compression mould. There is also provided a moulded product per se as well as a moulded product formed by the method of construction. The moulded product is preferably a prosthetic device including a J-shaped pylon ( 11 ) and sole plate ( 23 ).
