InfinityRN 4 Width:Regular Ultra-thin top panel to regulate

Ultra-thin top panel to regulate temperature and increase air flow

With Unobtainium® nosepads

Achieves quarter running sock non-slip security with non-constricting compression sock bands

Mesh construction on top of the sock provides ventilation for added breathability

Laces with 70% recycled nylon and 30% recycled polyester

InfinityRN 4 Width:Regular Ultra-thin top panel to regulateWith supportive cushioning built for a smooth run, the Nike InfinityRN 4 is a brand new take on a familiar favorite. It's made from our all new Nike ReactX foam, which gives you 13% more energy return compared with Nike React foam, to help you stay fresh and bouncy. (What's more? Nike ReactX reduces its carbon footprint in a pair of midsoles by at least 43% compared to Nike React foam.*) We coupled the ReactX foam with Nike Running's best fitting