MUCK Boot Co Two Pair Merino Wool Gradual Compression Tall Boot Socks XL Shoe Size 12-16 65% Merino Wool, 30% Nylon, 5% Spandex Made in the USA Medium weight over the calf sock with full cushion leg and foot for ultimate comfort Gradual compression reduces fatigue Seamless toe for added comfort and reduced irritation at the toes High quality merino wool offer superior moisture control and warmth keeping socks and feet dry Arch support for added fit with reinforced heel and toe for added durability in high wear areas for long lasting sock life Stay up leg and top to provide secure and comfortable fit Size XL Fits 12-16 Shoe Thank you so much!