Ideal to keep long hair defined, without frizz, marks and knots. Because it is a fabric of smooth and soft fibers, satin, in contact with the hair, reduces friction, in addition to not absorbing the natural oiliness of the hair, preventing the appearance of dryness. The Bio Extratus Satin Extended Cap, to provide greater comfort, has an elastic adjusting tip and a button for adjusting the length. Dimensions: Length 79cm (31.1 in) and Circumference 138cm (54.3 in)