New jerseys supporting Colin Kaepernick are sold out hours after being announced for presale, and he’s still a free agent in the NFL.

USA Today reported that Kaepernick announced that jerseys with "#IMWITHKAP" across the front were up for presale Monday. They have the athlete and activist's number, 7, on the back, as well as his last name.

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Kaepernick posted on Twitter that a portion of proceeds for the limited edition jerseys, which sold for $99.99 in youth sizes and $174.99 in adult unisex sizes, will benefit the Know Your Rights Camp. The campaign, founded by Kaepernick, raises awareness on self improvement and education and provides instructions on how to properly interact with law enforcement in varying situations.

Hours after the announcement was made, Kaepernick said in a follow-up tweet that the jerseys were instantly all out of stock, adding that all profits would now go to Know Your Rights Camp.

This is the latest in activism and awareness work for Kaepernick. He is the face of Nike's 30th anniversary of the brand's "Just Do It" campaign, and appeared in a commercial for the brand that aired during the NFL season opener game Thursday. Since the campaign was announced, online Nike sales are up 31 percent, despite a number of boycotts across the country.