Let the beat go on. Whether it's your heart rate or the new Drake bumping in your ear buds, keep it moving in the Stance Heart Rate Tab running sock. Individual fits for the right and left foot offer customized arch support. A reinforced toe and heel offer added durability, while breathable performance mesh keeps feet cool. On the tab you'll notice a reflective logo to help keep you safe and seen, mile after mile. It features an Anatomical cushioning, Seamless toe closure, Reflective Logo for better visibility, a breathable performance mesh and a FEEL360™ Technology.