These are super thin no-show bamboo socks.

• Content: 80% Rayon from Bamboo, 15% Nylon, 5% Spandex
• Bamboo is moisture wicking, anti-microbial and super soft. 
• Fits shoe sizes 5-9 Women's or Men's 4-8
• Light Weight Construction - Very thin bamboo socks ideal for summer!
• Made in Korea