The Sportful Wool Women’s 16 Socks combine the natural thermal and wicking properties of merino wool with the stretch and durability of nylon. Suitable for the depths of winter, the socks have terry-knit merino on the foot and ankle for extra warmth, while the heel, toe and foot bed have a merino and nylon blend for fit and reinforcement.Key FeaturesMerino wool and nylon winter sock,Merino and nylon reinforced footbed,Terry-knit merino on the foot and ankle for extra warmth,Reinforced heel and toe,0°+ C.