A sports apparel store in Colorado Springs, Colo. is shutting down after it stopped selling Nike products this fall.

Stephen Martin, the owner of Prime Time Sports, is planning on closing shop in Chapel Hills Mall in the next month. He pulled all Nike gear from his store after Colin Kaepernick appeared in an ad for the company.

“That part of the military respect that’s in me just cannot be sacrificed or compromised, as I believe (Broncos linebacker) Brandon Marshall and Colin Kaepernick both did," Martin told Colorado station KOAA News 5. "I don’t like losing a business over it, but I'd rather be able to live with myself."

Kaepernick, the former 49ers quarterback, began kneeling during the national anthem to protest police brutality and racial injustice in 2016. The quarterback opted out of his contract with San Francisco in March 2017 and has not found work in the NFL since.

Nike unveiled an ad campaign centered around Kaepernick in September.

Don’t ask if your dreams are crazy. Ask if they’re crazy enough. #justdoit pic.twitter.com/Wd5L42egV8 — Nike (@Nike) September 5, 2018

“Being a sports store without Nike is kind of like being a milk store without milk or a gas station without gas," Martin said. "How do you do it? They have a monopoly on jerseys."

Martin also canceled an autograph session with Marshall, who took part in the protests during the national anthem, in 2016.

Martin added he's trying to help his employees find new jobs.

“As much as I hate to admit this, perhaps there are more Brandon Marshall and Colin Kaepernick supporters out there than I realized,” Martin said.