Right now the Nike All-Field 3.0 Size 6 & 8 Football is priced for $9.97 (Reg. Price $20) on Nike.com. Use coupon code: TAKE20 (exp. 3/5) to get a an additional 20% off making it $7.98. Shipping is free when you create an account here 1st (free to join). You can go here for this deal!
They also have the Nike All-Field 3.0 Size 9Football for $11.98 after the TAKE20 coupon code.