Teko Kids M3RINO.XC Merino Wool Midweight Hiking, Casual and Walking Socks 74% Merino Wool / 25% Nylon / 1% Elastic Made in US A versatile sock engineered for performance and comfort Anti-welt double cuff and interwoven Lycra provide a comfortable fit and superior support with less bunching The reinforced toe and Y-heel increase durability Air vents let your feet breathe and dissipate heat Lifetime teko guarantee and Made in the USA Reinforced with soft, durable nylon Exceptional fit: Seamless toes, arch support, anatomical y-heel; fully-featured technical sock for kids