AC Milan unveils PUMA x Slam Jam 2025/26 fourth kit in RE:FIBRE

AC Milan unveiled its 2025/26 fourth kit on February 25, a collaboration with PUMA and Slam Jam that the club published in an official press release that day. The announcement names a Player version of the kit and highlights PUMA’s RE:FIBRE material as the technical backbone of that model.

PUMA describes RE:FIBRE on the Player version as composed of at least 95% recycled textile waste and recycled polyester. That specific composition is the clearest sustainability claim in the Feb 25 communication and distinguishes the match-designated Player version from other merchandising tiers by material specification.

Slam Jam is credited as a collaborator on the garment introduced for the 2025/26 season. The joint credit places the kit at the junction of sports apparel and contemporary streetwear partnership strategies; the club, PUMA, and Slam Jam are listed together in the February 25 announcement as the creative and production partners for this fourth kit.

The timing matters: the disclosure on Feb 25 lands mid-cycle for the 2025/26 campaign, when clubs roll out alternative kits for commercial windows and cup fixtures. The Player label combined with an explicit recycled-content percentage gives buyers and collectors a specific sustainability metric to evaluate: 95 percent recycled textile waste and recycled polyester, as stated by PUMA for the Player specification.

This is a concrete data point for anyone tracking how major brands quantify recycled content in team apparel. The clearest measurable takeaway from the AC Milan release is PUMA’s RE:FIBRE claim and the pairing of that claim with a Slam Jam collaboration for a fourth kit tied to the 2025/26 season. The Feb 25 publication makes the kit both a product drop and a public example of PUMA’s material messaging.

Expect the conversation to pivot on that one figure - at least 95 percent recycled textile waste - as retailers, fans, and sustainability observers parse what actually reaches stores and what ends up in matchday rotation during 2025/26. The Feb 25 unveiling places AC Milan, PUMA, and Slam Jam squarely into that material debate for the season ahead.