Our new Biofuse Protective Cap has an extra-large capacity and is designed to accommodate high-volume hair. Made from soft and stretchy Elastomeric silicone for maximum comfort, it includes a textured inside for grip and a secure fit. Easy to put on and take off, it helps protect your hair against chlorine whilst creating a smoother profile in the water. Choose from two cap sizes: Size Large provides a 94% increase in volume vs our Silicone Moulded Cap Size XL provides a 154% increase in volume vs our Silicone Moulded Cap