Less is all you need. Our Vertex Ultra-Light Cushion has the sleek feel of a super stripped down, lightweight running sock, but still delivers cushioning for miles of comfort. Darn Tough Vertex No Show Tab Ultra-Light Cushopm Sock 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. Ultra-Light Cushion: Provides a light layer of cushioning along the bottom of the foot. Ultra-Light, ultra-comfortable. No-Show Height: The toughest sock you’ll never see. When your shoes are on this sock is gone. 50% Merino Wool 45% Nylon 5% Lycra® Spandex CUSHIONING ULTRA-LIGHT WEIGHT WITH CUSHION: Provides a light layer of cushioning along the bottom of the foot. Ultra-Light, ultra-comfortable. Vertex No Show Tab Ultra-Light Cushion is Ultra-Light Weight with Cushion: Provides a light layer of cushioning along the bottom of the foot. Ultra-Light, ultra-comfortable. CUSHION ZONE