Simply create a gift whether it be physical or virtual via adidas.com. adidas offers several different card designs and even allows you to create your personalized card through, "my adidas".
Just choose the gift card style and select the amount of money you want to load onto the card, then complete the checkout process and you can have the card mailed out as a gift.
In order to receive the card faster, you can send a virtual card through email using the adidas website as well. Begin by choosing from a vast range of styles, select an amount, and finish the checkout process by choosing the destination email to deliver the gift card.