If a material is labeled as water-resistant it means that the material itself may be treated in such a way that it is more difficult for water to get inside of it, or possibly that it is coated with a very light substance that helps improve the material's chances of surviving an encounter with water.
Uma ngabe into ibhalwe ukuthi ayizweli emanzini kusho ukuthi leyo divayisi uqobo ingakhiwa ngendlela yokuthi kube nzima kakhulu ukuthi amanzi angene ngaphakathi kuyo, noma mhlawumbe ukuthi ifakwe into elula kakhulu esiza ukuthuthukisa amathuba wedivayisi okusinda ekuhlangabezaneni namanzi.