A compression system for promoting circulation including a wearable compression device having an outer shell sized and shaped to receive a user's limb. The outer shell includes an exterior surface, an opposing interior surface, a first inflation zone disposed on the interior surface, and a second inflation zone disposed on the interior surface and fluidly coupled to the first inflation zone. The compression system also includes an air tube configured to fluidly couple the first inflation zone to the second inflation zone and a compressor coupled to the compression device and the air tube. The compressor is operable to selectively inflate and deflate the first and second inflation zones in a non-sequential manner to apply pressure to at least a portion of a user's limb.