The 2025-26 Union Berlin away shirt features a deep forest green base with an intricate tonal pattern inspired by the deciduous trees of the Wuhlheide forest. This nature-themed design incorporates detailed leaf motifs of robinia and beech trees, paying tribute to the iconic path supporters walk to the Stadion An der Alten Försterei. The jersey is finished with a monochrome club crest and sleek accents that maintain a cohesive, earthy aesthetic.