Water-soluble dyes having fiber-reactive properties and conforming to the general formula (1) ##STR1## where F is the radical of a metal-free or heavy metal complex monoazo or disazo dye which contains at least one sulfo group,n is 1 or 2,Y is vinyl, .beta.-sulfatoethyl, .beta.-haloethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl or .beta.-acetoxyethyl,R.sup..alpha. is hydrogen or lower alkyl which may be substituted by carboxy, sulfo, cyano, hydroxyl or chlorine,A is a group of the general formula (2a) or (2b) ##STR2## where G is alkylene of 1 to 6 carbon atoms, alkylene of 2 to 6 carbon atoms which is interrupted by 1 or 2 hetero groups, or methyl-substituted cycloalkylene,R is hydrogen, halogen, hydroxy, sulfato, cyano, carboxy, carbamoyl, lower carbalkoxy, lower alkanoylamino, substituted or unsubstituted benzoylamino or a group of the formula --SO.sub.2 --Y.sup.2 where Y.sup.2 has one of the meanings of Y or is .beta.-hydroxyethyl,k is zero, 1 or 2,k* is zero, 1, 2, 3, or 4,X forms together with the N-atom the bivalent radical of a heterocyclic ring,Y.sup.1 has one of the meanings specified for Y,W is hydrogen, methyl, sulfomethyl, carboxymethyl, substituted or unsubstituted lower alkyl, substituted or methyl-substituted cycloalkylene or substituted or unsubstituted phenyl, andB has one of the meanings specified for A.The dyes of the general formula (1) make it possible to obtain strong, fast dyeings and prints on carboxamido-containing and/or hydroxy-containing materials, in particular fiber materials, such as wool, synthetic polyamide and in particular cellulose fiber materials.