Authentic Athletic Club Bilbao home football jersey featuring the club’s iconic red-and-white vertical stripes with subtle geometric texture on the red panels for enhanced breathability and modern aesthetic. The shirt displays the official Athletic Club crest on the left chest and 'Kutxabank' as the front sponsor in bold black lettering — Kutxabank is the long-standing regional banking partner of the Basque club. Short-sleeve design with a clean white crew neck trimmed in black, and contrasting white sleeve cuffs with red piping. Made from lightweight, moisture-wicking synthetic fabric ideal for matchday performance or fan wear. The collar interior features repeating 'EASTBAY' branding (likely the manufacturer/distributor), indicating licensed production. Perfect for supporters attending San Mamés Stadium or casual streetwear styling with its bold sport heritage. Ideal for summer matches or warm-weather daily wear due to its ventilation-focused construction. This is a replica-style fan jersey, not a match-issue version, but maintains authentic visual identity and fit.