As the term suggests Micro Patterns are small patterns in camouflage that are intended to provide illusions of depth and silhouette breakup at closer ranges. However as the observation ranges increase it produces "blobbing" where the small changes of color are no longer perceived by the eye and it becomes similar to one solid color, especially when the colors used don't have much contrast. This is why combining both macro and micro patterns are essential to optimize the camouflage effect at various ranges.
An example of micro pattern dominant camouflages are Russian EMR, UCP and Strichmuster