Eco-friendly Dress / Casual Bamboo Socks Men/Unisex (dark grey). Silky soft, seamless toe, breathable, antimicrobial, naturally fights odor, wicks moisture, and keeps you dry, cool and comfortable. Material: 80% Bamboo Rayon; 18% Polyester; 2% Spandex. Size 7-12.5, stretchable. Color: dark grey. Gender: men, unisex