The Apple iPad Air Smart Case retails in Singapore for S$118 and there are 6 colors to choose from (Brown, Beige, Black, Yellow, Blue & Red). It is made up of aniline-dyed leather. Since I am using the silver iPad Air, I chose the color Brown! I think Brown or Red will go well with the Silver iPad Air.
The smart case is very well build since it comes from Apple and hence all the holes are aligned perfectly well with the iPad Air. It does add a little bit of bulk and weight to the iPad Air but is still acceptable for me.