Mens Travel Socks With a Pocket. Comprised mostly of the patented high-performance fiber, Comfortrel XP, this comfy, moisture-wicking calf-high sock is perfect for the savvy traveler on the move. There’s nothing like going through train stations or airports with your hands full always wondering if your valuables are safe and secure. With a pocket large enough to carry your passport, cash, keys, and money, you can outsmart even the slickest thief determined to ruin your trip. Zip It Travel Socks – smart gear for savvy travelers. One pair; white. Fabric content: 70% Comfortrel XP, 15% Nylon, 15% Spandex. Fits mens sizes: 6 12-1/2.