Bathrobes have always been used for use in the bathroom but now many company are experimenting with new styles based on TV series and many more styles to keep in line with high street fashion.
Bathrobes have been used in a very linear fashion, however recently, bathrobes have used by TV shows - a key example that can be seen is the Doctor Who bathrobe that has a design inspired by the tardis. The material (mostly is a velour type material) can also be customised heavily, consumers have choices available which determine if they want a bathrobe that's suited for comfort or a material which favours the design more. This approach to bathrobes have surely expanded the use of bathrobes, once a garment worn when finished bathing, the bathrobe now has a function of relaxing on the couch while watching your favourite TV show.
A few other cases where other TV shows have inherited bathrobe designs are shows such as Breaking Bad, where a yellow bathrobe can instantly be recognised as a lab coat. moreover films have also been Incorporated into the designs. Harry Potter Bathrobes feature a wizards gown and also Star Wars where a complex design can be shown as an R2-D2 Robot, and also a much more similar design can express a Jedi Robe