Hat with exendable visor

A hat with an adjustable visor includes a shell disposed on a user's head, an upper visor coupled to the shell and having a plurality of elongated slots, each elongated slot having a pair of rails extending along opposing side walls of the elongated slot, and a lower visor slidably mounted to the upper visor and having a plurality of tab assemblies, each tab assembly slidably mounted to the pair of rails of one of the plurality of elongated slots in the upper visor. The lower visor slidably adjusts relative to the shell to enable the plurality of tab assemblies of the lower visor to traverse the pairs of rails in the plurality of elongated slots of the upper visor, thereby extending the lower visor beyond the upper visor in an extended position or retracting the lower visor to align with the upper visor in a retracted position.