WE-STIM CalfSleeve revolutionizes muscle anti-aging via body-motion-powered micro-electric stimulation, delivering up to 89.7% performance gains and 66.3% swelling reduction. This ultra-thin sleeve integrates a fully embedded energy-harvesting system that generates continuous stimulation from natural body movement, providing both recovery and performance benefits. Calf health is essential for athletes, labor-intensive workers, and modern professionals who spend over 12 hours a day sitting or standing. Yet, leg fatigue, swelling, and circulation issues are often overlooked until they escalate into chronic pain, venous disorders, or costly medical interventions. By turning daily wear into a self-managed recovery tool, WE-STIM CalfSleeve sets a new standard for accessible, continuous care. It enables muscle maintenance during training, work, or rest, seamlessly integrated into daily life. With its device-free, net-zero design and easy usability, it empowers users worldwide, from athletes to desk workers, without devices or costs, to preserve mobility, reduce strain, and maintain long-term physical resilience.