Athletic Club and Castore have officially released the new 2025-26 away shirt - a bold and emotional design inspired by the values and history of the club.
Dubbed the "Valentía" shirt, it celebrates the enduring courage of Athletic through decades of challenges, triumphs, and unwavering identity.
Athletic Bilbao 25-26 Away Kit
Check out Castore's Athletic Club Bilbao 2025-2026 away football shirt below.
The Castore Athletic Club Bilbao 2025-26 away football shirt features a deep navy blue base, accented by striking turquoise trim on the collar, sleeve cuffs, and shoulder inserts. It's a sleek and elegant look that embodies both modern design and historic symbolism.
On the front, the main sponsor "Kutxabank" is rendered in white, while Castore’s logo and the club crest sit proudly on the chest.
The back of the shirt adds further character, featuring the iconic Ikurriña flag fused with an eguzkilore, a traditional Basque flower symbolizing protection, strength, and resilience.
The design echoes the sea, sometimes turbulent, sometimes serene, representing the journey of the club and the city
Athletic Bilbao 24-25 vs 25-26 Away Kit
Athletic Bilbao 25-26 Goalkeeper Kit
Deep navy shorts and socks complete the new Castore Athletic Club 2025-26 away uniform.
Available since June 13, the Castore Athletic Bilbao 2025-2026 away shirt retails at 90 EUR.
Made by Castore. What do you think about Athletic Club Bilbao's 25-26 away shirt? Comment below.