X-BIONIC - The X-Bionic®️ Neckwarmer 4.0 keeps you performing under all conditions. . Equipped with award-winning technologies, including the 3D Bionic Sphere®️ System with Thermosyphon®️ Technology, the Neckwarmer keeps you optimally protect
X-BIONIC - An evening run, a quick cycling tour, a demanding snowshoe hike, or a sweat-inducing section on a cross-country outing: the fine knit on the X‑Bionic®️ 4.0 Neckwarmer is just right,
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