Keep your hair in place during a workout with the prAna Aurora headband. Knotted tie-dye material is soft and stretchy for a comfortable, stay-put fit. 95% Organic Cotton, Spandex and 5% Spandex. Tie dye knotted headband great for any workout. Made of a super soft Organic Cotton, Spandex/spandex blend fabric. Stretchy for a comfortable stay-put fit. One size fits most. Material: Organic Cotton, Spandex.