FEATURES Performance Fit: No slipping, no bunching, and no blisters. Fine Gauge Knitting: Unprecedented durability and our unique “put it on, forget it’s on” feel. Fast Action Wicking: Pulls moisture away from skin. Fast drying. All Weather Performance: Cool in the summer, warm in the winter. Naturally Antimicrobial: Repels bacteria and odor. Guaranteed For Life: No strings. No conditions. For life. Merino Wool: The ultimate fiber for breathability and comfort in all conditions. True Seamless ™ : Undetectable seam fusion for an ultra smooth, invisible feel. SPECS Graduated Light Compression: Graduated compression from 15-20 mmHg to help speed your recovery from even the most intense activities. Ultra-Light: Our lightest sock for race day or anyone looking for a lighter-than-air feel from a tougher than hell sock. Over the Calf Height: The name says it all. The ultimate height for keeping the outside—out.