Yonex 3D Ergo Socks are innovative performance socks engineered with human ergonomics for optimal foot support and comfort during intense athletic activity. Featuring left/right-specific design (左右専用) and 3D立体形状 (3D立体 shaping), they conform precisely to the natural contours of each foot, reducing slippage and pressure points. Made from high-stretch, moisture-wicking synthetic blend, these black socks offer superior breathability and durability—ideal for badminton, tennis, and other court sports. The reinforced heel and toe zones enhance longevity, while the seamless toe closure prevents irritation. Packaged in size S (22–24 cm), they’re designed for snug, adaptive fit without constriction. Perfect for daily training or competitive play, these socks deliver professional-grade support with minimalist aesthetic. Their sleek black finish ensures versatility across sportswear ensembles, and the Yonex branding signals trusted quality in racket sports apparel. Ideal for athletes seeking anatomical precision and fatigue reduction during extended sessions.