When its a Yash Raj Film you know the actors will be immaculately dressed. Ek Tha Tiger is no exception. Katrina Kaif's look in the film is clean and fuss-free, much like how the star dresses in real life. The styling is clean with minimal accessories and natural hair & make-up.
Zoya's (Katrina Kaif's chracter in the film) wardrobe in the film consists mostly of casuals including mini dresses (some very Barbie like), denims, tees and a token salwar-kameez. She sporting high street labels such as Topshop and Warehouse in either bright solids or pastel micro-prints. I don't know if height had anything to do with it but throughout the film Katrina is wearing trendy flats. Personally, I think they look better than heels when worn with short casual dresses.
Katrina Kaif has kept her hair simple; no color or crazy steps. Her hair is mostly open (with an occasional ponytail). Hell even when she is jumping from roof tops or dangling from cars her hair has been left loose. Make-up has also been kept natural with tons of lip gloss. In the time of when black and neon nail paint is all the rage, the lady sports none throughout the film.
While sticking to the casual-chic look through the film, Katrina glams up for the "Mashallah" song. The bustier tops and flowy skirts are clearly designed to show off the star's newly acquired toned figure and belly dancing moves.