The running sock for understated comfort. Perfect for warm days and race days. Your new secret weapon.TechnologyYour new secret weaponWith the benefits hidden, the Low Sock is for runners who let their results make the statement. Merging ultralight minimalist design with anatomical shaping for gentle support, it’s the ideal choice for warm days or race day. Or whenever you want understated comfort.MaterialsTechnical meshOn Performance Socks combine a polyamide and elastane blend with technical mesh paneling. The mesh sections help keep foot temperature in perfect balance. Cooling when things heat up, warm enough that you won't get cold feet - whatever you're about to take on.DesignTell your feet it's go timeYour running sock might not win you the race, but it could lose you one if it doesn't perform. That's why we set out to see how much performance we could put into a running sock. Turns out, a lot. Like the pattern at the arch which triggers sensory receptors to prime your feet for the run. Plus Swiss Engineering to then keep the sock firmly in place. For performance standards that don't slip.Sizing S (US 6.5-7.5) M (US 8-9) L (US 10-11) XL (US 11.5-12.5) XXL (US 13-14)