Hanz Waterproof Socks (Crew Length) is a three-layer membrane construction waterproof sock ensures protection and minimal bulk for any activity in wet, rainy conditions. HEIGHT: Over-the-ankle height (Slightly longer than "Average" socks) CONSTRUCTION: Three-layer construction, securely bonded throughout entire sock LINER: HANZîàwicking liner for moisture management MEMBRANE: HANZîàstretchable waterproof, breathable MVT membrane SHELL: Nylon/LycraîàSpandex offering a durable, flexible, stretch covering (Feels like any regular socks) Colour: Black Stretch-to-fit avoids uncomfortable sags and wrinkles, even in strenuous activity Seamless design provides the ultimate in performance and comfort without annoying ridges and pressure points Every sock is pressure tested to ensure it has no leaks Size Chart: Size Men's Shoe Women's Shoe Small 5-6 6-7 Medium 7-9 8-10 Large 10-11 11+ X-Large 12-15 NA Made in USA