InfinityRN 4 Shoe Size:9 Solid rubber outsole provides additional

Solid rubber outsole provides additional forefoot stiffness at toe off

It's the ultimate Support Utility Vehicle - without being hard to park

Evolyte® carbon fibre stabiliser cap

Contoured footbed for legendary BIRKENSTOCK support

this revolutionized running shoe features PWRRUN PB - our signature foam that packs in more cushioning and energy return than ever

InfinityRN 4 Shoe Size:9 Solid rubber outsole provides additionalWith supportive cushioning built for a smooth run, the InfinityRN 4 helps you hit the ground running. Made with soft, comfortable Nike ReactX foam and updated with Nike Running's best fitting Flyknit yet, this road runner helps you take off anytime, anywhere. Its the kind of shoe that can grant you that priceless peace of mind to go faster and farther, thanks to high foam stacks and an intuitive design that supports every stride. Cushioning: Super