James Harden -- Still Rocking Air Jordans ... What Adidas Deal? (PHOTO)

James Harden essentially laughed off the hundreds of millions Adidas is throwing at him ... and sported a dope pair of NIKE Air Jordans for date night with Khloe Kardashian.

The Beard and his GF caught a late showing of "Straight Outta Compton" in Calabasas over the weekend. While Harden couldn't be bothered to put on some Adidas kicks ... at least Khloe was sporting the brand's sweatshirt and sweatpants.

In fairness to Harden, the Adidas deal doesn't officially begin until October 1 -- but we strongly doubt Adidas honchos will be happy about this.

Right before Harden signed his $200 million deal ... Khloe was seen wearing Adidas to one of his games. Clearly she has a sense of brand loyalty.