Well, generally speaking, you can find them in many places, such as the official stores online or in the street. Of course, it will be cheaper when you buy them on online shop. For example, you can buy them http://www.66-contact-lenses.com/contacts/nike_maxsight_contact_lenses.htm. In this place, there are many different types which you can choose from. For example, they have vision direct, coastal contacts. And they can just cost 45dollars. So they are kind of cheap. Besides, you should know that the Nike MAXSIGHT contact lenses actually are a pretty useful gadget for anyone who is active in a sport and requires corrective lenses. Also, they are made for daily use and last about a month per pair, but you also should remember that they are not suggested for active everyday wear.