An "infinity loop" refers to a situation or pattern that continues without ending. It is like a never-ending cycle or a repeating pattern that goes on forever. Full definition
Similarly, Rapsodie inepte (Infinito)(1969) brings together layers of Virginia tobacco leaves with blue and white fluorescent text in a delicate, broken infinity loop that arcs across the wall. (artzine.com)
This plaid scarf is perfect because it has the look of the blanket scarf but the infinity loop offers a leaner look while still providing warmth! (sabbystyle.com)