For today’s popular casual and walking shoes.

The most obvious advantage of round shoelaces is durability. Flat shoelaces simply don’t last as long as round ones do because they get twisted up more easily and wear out faster under normal conditions. Not only do they work themselves loose more quickly, but they also fray at the ends more rapidly.

If you use the same material for round and flat shoelaces, round ones will last longer due to their higher density and stiffness. Round shoelaces are 3D tubular weaves woven around a firm core. This increases their strength and enhances durability.