Dr. Scholl's Women's Travel Mild Compression 2 Pack Sock 95% Nylon, 5% Lycra Spandex Made in the USA and Imported Machine Wash The mild compression level (10-15 MMHG) applies pressure at the ankle that gradually lessens up the leg Cotton free to reduce moisture absorption and irritation Premium materials for the finest fit and comfort Fits women's shoe size 4-10 2 pairs per package Unlimited Free Two-Day Shipping Instant streaming of over 40,000 movies and TV episodes A Kindle book to borrow for free each month - with no due dates Over a million songs and hundreds of playlists