Fit & Design Darn tough's lowest profile, ultra-lightweight yarns create zero bulk, zero itch socks that feel like a second skin Runners enjoy Merino Wool's ability to dry quickly and move excess heat and moisture away from feet - heling to prevent blisters as well Performance fit means no slipping, no bunching, no blisters Technology Closed every toe seam using Darn tough's True Seamless(TM) Toe technology for an ultra smooth, undetectable feel Additional Details Average 8.5 in. from heel to cuff - expect them to rise about 6 in. above a running sneaker