Apple Watch Series 2 Case, Haoos [Ultra-Thin] TPU Transparent Full Body Protective Cover [6 Color Combination Pack] for Apple Watch Series 2 38mm iWatch 2016 (Series 2 38mm 6 Colors Soft TPU Case);

The Liquid Air case for the Apple Watch is made of a flexible yet durable clear TPU for a secure fit that exhibits the watch's true colors.
It measures 0.6mm in thickness, adding only a negligible amount of weight.
Wristbands can be easily swapped with this case on, making it the obvious choice in clear protection that's practical and convenient.
If you are going to buy a case for the Apple watch, it should be this on. I have tried a few different case and I found this to be the best because of

1- It goes on so tight that I had to go outside in direct sun to see it
2- enhances the look of Apple watch instead of taking away
3- does not impact swiping through the interface
4- very thin
5- does`t get dingy
6- you can`t even feel its there
The colored cases also add a splash of color to your watch... I highly suggest this case to you.--Acording to Customer purchase