Covering the full spectrum of comfort, durability and fit, the Prism socks are beacons of positivity. Merino Wool Athletic crew socks will bend your mind with their flexibility - wool for training, for hanging, or for anything the four seasons bring your way.  Performance Fit: No slipping, no bunching, and no blisters. Fine Gauge Knitting: Unprecedented durability and our uniqueput it on, forget its onfeel. Fast Action Wicking: Pulls moisture away from skin. Fast drying. All Weather Performance: Cool in the summer, warm in the winter. Merino Wool is fast drying, breathable and odor resistant for all-day comfort. Crew height WeightLightweight Materials56% Nylon, 41% Merino Wool, 3% Lycra Spandex