Wanted to show a quick difference between Fog and Concrete for those interested. Also, I noticed some differences in case anyone was interested in OEM vs Moko silicone bands. Here are some Fog vs Concrete shots. The Fog is slightly lighter and more grey than Concrete. In dim indoor lighting, they are almost indistinguishable. Once you add a flash or bright light, it's easy to tell them apart. The Concrete has a slight tan hue to it. Fog on left, Concrete on right Now this is a quick comparison between the Moko brand white and red bands vs the OEM Apple White and Product Red. Apples White sport band is brighter and more vibrant than the Moko. Also, the Apple band uses grey hardware (circled) whereas the Moko uses all black. The Moko red band is definitely not as bright and vibrant as the real Product Red band. And likewise, the OEM band uses matching red hardware, where the Moko uses black again. I also have Midnight Blue and Fog in both OEM Apple and Moko if anyone needs comparisons of those as well.