InfinityRN 4 Width:Regular Complete with classic BIRKENSTOCK design

Complete with classic BIRKENSTOCK design elements

Soft and slightly stretchy mesh helps keep you comfortably going

SHIELD: A toric shield of Plutonite® in a rimless design for a fashion-forward style

100% polyester

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