a hydrophilic , lubricious , durable , flexible , coating comprising a crosslinked polyurea matrix complexed with a hydrophilic polymer selected from the group consisting of poly and polyvinylpyrrolidone , said crosslinked polymer formed from the reaction of an isocyanate and a compound having at least two active hydrogens per molecule selected from the group consisting of polyamines , polymercaptans , and polycarboxylates or compounds with nh , nh 2 , sh or cooh groups on same molecule in the presence of said hydrophilic polymer , with the total sum of the average isocyanate functionality plus the average active hydrogen functionality exceeding 4 and the molar ratio of total nco groups to total active hydrogens being at least 0 . 8 .