49% Polyester, 38% Stretch Nylon, 7% Tencel®, 6% Spandex

SynchroKnit patented contour knit, no unneeded fabric * Double Y heel gore provides most precise fit available * Y gore toe box provides room for natural expansion * Seamless internal toe seam * Size and Made in USA knit into cuff

An Ultra-lightweight running sock fitting like nothing else out there. SynchroKnit contruction drops stitches out of the knitting process to create socks shaped like a foot and not a tube, allowing for proper support and and a contoured fit. Most precise fit anywhere.