DeFeet's annual holiday Woolie Boolie Lambert sock is sure to please the soul – and your soles. Knit with a soft merino wool blend yarn with a 6 inch crew cuff and fully cushioned throughout. The wool fibers inherently manage moisture to keep your feet warm and dry in the cold. These qualities make the Woolie Boolie an awesome outdoor sock but also make it superior for casual wear, bringing padded comfort to everyday life.