The Air Jordan's $300 tag given in the movie is an inflated price due to its popularity in Brandon's area. Actual prices range from $160 to $180 and the shoe is still available to this day in multiple styles from children's basketball shoes to trainers. They are a basketball shoe made by Nike released in 1985 originally for the price tag of $65.
The pair of shoes Brandon buys are Air Jordan 1's in the Black and red colour way (Bred)
Adele Romanski produced both Kicks and Moonlight (2016) in the same year, which both feature Mahershala Ali portraying a drug dealer.
The black and red color of the basketball Air Jordan 1 are the color of Michael Jordan's NBA team, the Chicago Bulls.
Michael Jordan's foul line dunk was originally done by predecessor Julius "The Doctor" Erving, aka Dr. J, the NBA hall of fame inductee who brought "slam" dunk to professional basketball. However, Jordan's dunk was successfully done from further back as only Jordan's toe was on the foul line while half of Dr. J's foot was at the time of his dunk.