Casper is our ultimate tennis sock 6 reasons to choose Casper 1. Cushioning in both the sole and the toe area 2. Compression around the middle of the foot 3. Breathable mesh parts on the upper side 4. The toe seam is hidden in the cushioning 5. The elastic around the calf is technically balanced to sit well without being tight 6. Made from a perfect mix of materials: bamboo and cotton make it soft and breathable, while nylon makes it extra durable Composition: 52% viscose from bamboo, 22% cotton, 22% nylon, 3% spandex, 1% polyester. Country of origin: CN Care: Wash at 30ºC with similar colors