- DeFeet has created the ultimate trail running sock. The Trail 19 is designed to work in conjunction with the trail running shoe to eliminate sock concerns on the trail. Trail running requires socks to have additional toe protection and extra support through the heel. The Trail 19 is made from the Merino wool for softness and durability. This sock has been tried and tested by runners from the Canadian Rockies to the Southeast Appalachian foothills.
