In search of a perfect day after? Bet on the Satin Cap to wake up with defined strands, 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 Cap is double-sided and has an adjustable tip for greater comfort and adaptation to the size and/or volume of hair. Cap Measurement M: diameter 55cm (21.7 in) and G: diameter 70cm (27.6 in)