For years, one of the more quietly frustrating aspects of the Adidas MLS kit lineup has been the fabric used in the so-called "Authentic" versions - but 2026 marks a genuine turning point.
Adidas MLS Authentic Kits Finally Feature Authentic-Grade Fabric
Previous iterations of Adidas MLS Authentic kits were built with AeroReady, the same moisture-management technology found in replica and fan versions of the shirts. For a product positioned and priced as a pro-level garment, this was a notable shortcoming, particularly when compared to Adidas Authentic kits in other competitions that featured the premium Heat.RDY fabric used by players on the pitch.
That changes with the 2026 MLS kits. Adidas has upgraded the Authentic tier to ClimaCool+, the brand's latest and most advanced performance material. ClimaCool+ improves on Heat.RDY with enhanced ventilation and thermal regulation, making the 2026 MLS Authentics a true step forward in terms of on-pitch performance credentials.
The move brings MLS Authentic kits in line with what fans of other major leagues have come to expect when paying a premium for the player-spec version of their club's shirt. It's a long-overdue correction - and one that serious kit collectors and supporters who wear their shirts in active settings will no doubt welcome.
Leaked: Adidas MLS 2026 Kits to Use New Authentic 2026 World Cup Template
This also means that the differences between the Authentic and Replica Adidas MLS 2026 kits are even bigger than before. The replica lacks various elements (even including kit design elements), in addition to the different materials.
All in all, the new Adidas 2026 MLS authentic kits are 100% the same as those for the 2026 World Cup.