InfinityRN 4 Width:Regular Complete with classic BIRKENSTOCK design

Complete with classic BIRKENSTOCK design elements

100% polyester

There's even gusseted side pockets that help keep your keys or card from falling out

Soft and slightly stretchy mesh helps keep you comfortably going

from its iconic style to keyhole bridge and metal rivets

InfinityRN 4 Width:Regular Complete with classic BIRKENSTOCK designWith 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