Original retro vintage football shirt Athletic Bilbao 2012/13

For the 2012-2013 season, Athletic Bilbao's kits were manufactured by Umbro, featuring a traditional aesthetic with minimalistic designs and v-neck collars. The primary sponsor was Petronor.

The home jersey maintained the club's traditional look, featuring classic red and white vertical stripes. It had black trim details. The away jersey was predominantly black and paired with red shorts.

Umbro also produced various training apparel, including track jackets and training shirts for the season. The team finished 12th in La Liga that season and competed in the UEFA Europa League, where they were knocked out in the group stages.