Universally adjustable: The adjustable silicone strap adapts to any head shape - suitable for children, teenagers, and adults. The buckle on the strap makes it easy to put on and take off the anti-fog goggles, avoiding uncomfortable hair pulling. Comfortable fit: The soft, flexible silicone frame and the elastic silicone headband provide maximum comfort. Completely waterproof due to soft silicone sealing lips that gently conform to the eye. The silicone swim cap is extremely lightweight, offers an ergonomic fit, and protects hair from bacteria, chlorine, and other substances in the water. Thanks to the excellent quality, the material does not stick to the head or feel dry. With the diving set, you can fully concentrate on swimming, as it offers the highest wearing comfort and reliably protects eyes, nose, ears, and hair from water intrusion. The adjustable and flexible headband on the diving goggles makes them adaptable to any head shape - suitable for children, teenagers, and adults.