4 pack bamboo socks warm cascade4 pack of premium bamboo men's socks in a warm gradient. Four harmonious shades from soft stone gray through camel and olive to deep burgundy a complete earth tone cascade. Bamboo fiber provides natural breathability, moisture management, and a silky soft feel against the skin all day long. Material: 80% bamboo viscose, 17% polyamide, 3% elastane Height: mid calf length (classic dress sock height) Ribbed comfort cuff no tightness Reinforced heel and