WATCH: Kyle Juszczyk, George Kittle model Kristin Juszczyk's new apparel brand at Niners' season finale

Kristin Juszczyk is promoting her new brand organically. As the San Francisco 49ers prepared for their season finale against the Arizona Cardinals, 49ers fullback Kyle Juszczyk and tight end George Kittle walked onto the turf and flaunted jackets from Off Season, a fresh apparel brand launched by Kristin Juszczyk, Kyle’s wife.

While Kyle wore the number "85," George sported "4" on their red jackets.

The duo gave a preview of what’s to come from Kristin’s new venture, which is gearing up for its official launch on Tuesday.

Inspired by Kristin's DIY game-day looks, Off Season is offering unisex puffers, vests, jackets and coats. Kyle Juszczyk's wife, Kristin's brand, for now, represents five NFL teams: the 49ers, Chiefs, Lions, Bills, and Eagles.

To bring her designs to life, Kristin has partnered with Emma Grede, the NFL Players Association and Fanatics.

Kyle Juszczyk's wife, Kristin Juszczyk showed off her at 49ers vs. Cardinals in her first custom piece

As the 49ers faced the Arizona Cardinals in a game with no playoff implications, Kyle Juszczyk's wife, Kristin, reflected on her massive career growth ahead of her brand's big launch. On Instagram, she shared two contrasting images under the theme "One Day" and "Day One."

The first, labeled "One Day," highlighted her latest creation, a sleek vest and jacket from Off Season.

The second, "Day One," took fans back to 2020, where Kristin, standing on a red carpet outside a stadium, donned a black and white strapless top with patterned pants and sneakers. A far cry from the polished designs she now offers.

"Today I am reflecting back on the first piece I ever made for game day back in 2020. I used to be so embarrassed of that piece but now I look back and cherish it! If you aren’t scared of your dreams, they are too small!! Off Season brand launches 1/7 at 9 AM EST!!! You guys, this vest and these jackets are truly the BEST quality, and I’m so proud with how they came out," read the IG Post's caption.

Kristin's career catapulted to the spotlight after Taylor Swift wore her custom-made puffer jacket to last season's Chiefs versus Dolphins wild-card game.

A year later, Kristin Juszczyk is turning her dream into a reality with the launch of her brand.