Smartwool’s trekking heavy cushion sock is great for extended trips in any climate. Designed to wick and help dissipate excess temperatures. On the trail it’s easy to marvel at the awe inspiring beauty of Philmont and sometimes in horror at the smells your feet can produce after a long day on the trail. Rest assured, however, that after a good wash smells won’t follow your socks with you to the next destination.Features:Men’sHeavy weightFlat knit toe seamFabric: 70% Merino wool, 29% nylon, 1% elastane Sizing (by US shoe size):S: Men’s: 3-5.5, Women’s 4-6.5M: Men’s: 6-8.5, Women’s 7-9.5L: Men’s 9-11.5, Women’s 10-12.5XL: Men’s 12-14.5Made in the USA