It was a Chevron shape of 4 lights on one side and 3 on the other. It moved so slow, no noise at all. It was overcast but the craft was below the clouds. Maybe 1/4 mile up. All I could see was the lights and they started to shift and change shape. The shorter side drew back and the longer side shifted and it became a perfect even shape Chevron. Then, one side flipped almost in reverse like it was pointing backwards but still flying perfectly straight and slow, maybe 50 mph. It slowly flew from South East to Northwest, then headed due West. Then, out of sight as it slowly floated out to the edge of the cloud.