Our neck gaiter is made from polyester 95% and spandex 5% microfiber with high UV protection. The fabric is stretchable and breathable. It can keep you comfortable in any where. It can effectively prevent the damage from dust, sunlight, saliva, ultraviolet rays. The length and width are 17 3/4″ and 9 3/4″. High stretchable circumference is about 20″ – 24″. It is durable, stretchy and unisex. One size fits all.