Abstract: A hair brush has a head, a handle extending from the head and a plurality of bristles. The head has a front portion, a rear portion and an edge portion. The rear and edge portions define a hollow housing. The front portion is flexible and the plurality of bristles extend therefrom except at a central portion. The front portion engages an inner channel of the edge portion and is movable between convex and concave configurations. When the hair brush is in a collapsed configuration, the front portion is in a concave configuration and it is within the hollow housing to facilitate transport and storage. When the hair brush is in an uncollapsed/extended position, the bristles are outside the hollow housing and ready to be used.