“These make all of my hiking shoes fit better,” raves our tester of the FITS Performance Trail, a low-cuffed sock with a deep, C-shaped heel pocket that doesn’t shift—even after days of wear—and cushions this friction-prone area better than any sock she’s worn.
“They’re like skin armor, preventing blisters even when my boots slip,” she attests. The wool/synthetic blend (58 percent merino, 32 percent nylon, seven percent polyester, and a whiff of Lycra) adequately manages moisture, but sweaty-footed hikers found them warmer than most lightweights. $18; 2 oz. (w’s S); fitssock.com