Ideal to prevent the damage of Dust, Haze, Allergies, Smoke, Pollution, Ash, Pollen, hazardous chemicals, heavy metal particles etc. *Multi Use Ways: A bandana, neck warmer, scarf, face cover, balaclava, beanie, hairband, sweatband, wristband, neck gaiter, skull cap,tube scarf and any way you can dream up. *Soft Material: Our Summer UV prevent cycling scarves are made of ice silk, which include 95% of polyester and 5% of spandex. The soft and durable material has the advantages of sweat-absorbing, quick-drying, sun-proof and breathable, and high elasticity. *Wide Application: Whether that be hiking, camping, running, festival going, biking, concert attending, motorcycle cruising, raves, long walks on the beach! Our head wraps provide UV protection up to UPF 20. *One Size Fit Most: Our bandanas feature a super stretchy fabric that accommodates most head sizes. Approx 9.4inches/24cm??16.5inches/42cm(W??H). The magic headband has enough elasticity to fit different head circumferences.