1. Copy the discount code of Airhead you want on the page and click to get code.
2. You'll observe the offer code being displayed and automatically copied to your clipboard after a single click.
3. Then go back to the shopping checkout page of airhead.com, where you can find the promo code box and paste the code into it.
4. As a final step, you need to press 'Apply Code' to view the size of the discount on your current order.