George Costanza is back with the New York Yankees.

Jason Alexander, who played the beloved curmudgeon on the iconic comedy series Seinfeld, has found himself a new role by headlining a campaign for Kith in partnership with the New York Yankees. Done with the blessing of Major League Baseball, the collection spans apparel, accessories and equipment with artwork in honor of the World Series champs. The line launches at select Kith stores and on the brand’s website on Friday, Sept. 26.

Kith founder and creative director Ronnie Fieg is a big sports fan and has previously partnered on other collections with the Yankees, the NFL and the New York Knicks in addition to other collaborations with Wilson, Adidas, Russell Athletic, Nike and more. The fashion house jump-started this new line by introducing collectible made-to-order printed bats featuring the Yankees logo made by Kith and Victus. Two natural bats retail for $245 while a Kith and Swarovski version retails for $5,000.

Alexander is outfitted in apparel from the Kith for the New York Yankees line, a range that includes a coaches jacket, a pinehurst sherpa jacket, a Nelson crewneck, novelty outerwear with all-over logo patches and co-branded artwork, like on a corduroy avery bomber jacket, the brixton puffed shirt jacket, and the wyona full-zip. Also included are classic hoodies, pullovers and sweatshirts.

Alexander also models a flight jacket done in partnership with Avirex, available in three iterations, including one with all-over Cooperstown collective patchwork and embroidery with each World Series Championship year, another designed in Kith’s staple nocturnal hue with python-printed accents, and one designed in the Yankees team colors with genuine MLB logo artwork.

See a selection of the pieces on Alexander in the new campaign below. Seinfeld fans will remember that Alexander’s Costanza landed a dream job with the team during season five, as he was hired as the assistant to the traveling secretary. He wound up having a long tenure with the team, which was featured prominently through season eight, as Costanza regularly appeared in his office and around George Steinbrenner, played by the show’s co-creator Larry David.