Using your Ethix Goggle Strap HD V3 is a breeze. First, attach the strap to your goggles following the updated clasping system. Make sure it's securely fastened so it won't come loose during use. When wearing, adjust the strap to a comfortable tightness around your head. For maintenance, keep it clean by wiping it with a soft, dry cloth regularly. Avoid exposing it to extreme heat or sharp objects that could damage the strap. If you notice any signs of wear, check the clasp and the strap itself. Replace parts if needed to ensure continued safety and comfort.