For serious runners, every gram of weight and additional bulk material can be the difference between first and second place, between comfort and agony. These Compressport High Cut V3.0 Ultralight Racing Socks are the choice of marathoners, long distance runners, speed runners and multidiscipline ironman competitors everywhere.Easy to wear and loaded with helpful compression tech, Compressport High Cut V3.0 Ultralight Racing Socks incorporate strap support at the ankles, 360° arch support and lower leg protection from impacts, abrasion and muscle tears. The clever 3D. dots placed anatomically throughout the socks deliver ventilation (along with a mesh structure leg), moisture extraction and cushioning where it\'s needed, such as at the Achilles and malleolus. Seamless toes and hemless cuffs stop rubbing and blisters.