A code for ID-ing Nike promotions?
Nike ID promo codes are codes that you can use to activate savings and such, from their website.
Have a look at http://insider.nike.com/us/promo-code/
The ID codes are the special numbers that unlock discounts, savings etc when purchasing Nike products.
Sometimes, you have to perform an action like go to the Facebook page and Like it so that you get the promo ID code