Made from our premium bamboo blend, they offer softness, breathability and long-lasting freshness.Reinforced toes and heels and seamless comfort make them a true toast to your feet. UK Shoe Size: 7-11US Shoe Size: 8-12EU Shoe Size: 40-47Machine wash at 30-40°C (80-105°F) with like colours. Machine tumble drying not recommended. HIGH CONTENT BAMBOO MATERIAL BLEND We have worked tirelessly to come up with a material blend that combines the wonderful benefits of bamboo whilst remaining durable, comfortable, breathable and still looking great at the same time. Our socks are 75% Moso Bamboo Viscose, 22% Polyamide on the heel and toe for durability and 3% Elastane for ultimate comfort, fit and feel. Disclaimer: These are authentic Swole Panda Bamboo Socks designed by a small independent team in the UK.