They are sewn with a deliberate twist in the fabric, a Möbius design.
The iRun Polyester Headband. Can be worn with the twist on the top or the bottom. They are wide enough to cover your head, and still able to scrunch or fold the fabric to make it thinner. Specifically designed with moisture wicking knit polyester/lycra blend for working out, running, and outdoor activities. Very comfortable!
Super comfy! And Super Awesome! You’re welcome!
iRun Polyester Headband - One size fits most
Material: 92% Polyester, 8% Lycra
Washing: Machine wash cold, lay flat/hang to dry; tumble dry low if you must