Darn Tough T4021 Boot Midweight Tactical Sock with Cushion, TAN, XS women 4.5-7 Cushioned. 62% Merino Wool 36% Nylon 2% Lycra Spandex. Machine Wash cold, gentle cycle. Air dry or tumble dry on low. Tactical boot socks average 11 in. from heel to cuff - expect them to rise just to the top of a basic 8 in. military combat boot. Berry Amendment compliant tactical socks are knit with Merino Wool that's raised, sourced, and produced in the USA. US Air Force Safe to Fly certified, meeting Flame Resistant and No Melt No Drip requirements for wearing next to skin under approved flame resistant combat and utility uniforms. A military-grade fiber, Merino Wool protects foot health and is ultra-durable in the toughest conditions. Midweight socks deliver temperature regulation, breathability, and durable protection in any conditions. Slightly irregular. #heavyduty #warm #moisturewicking #camo #army