FaasFoam+ - Offers a softer, cushier ride and is 25% lighter than the standard FaasFoam. Flex Notches - Aligned with the Forefoot Flex Grooves for consistent flexibility and a smoother and more flexible transition through your gait cycle. AirMesh Upper - Provides great breathability, keeping you cool, dry and comfortable while you run. EverFit 2.0 - Has improved upper lockdown technology, secures the midfoot without inhibiting the foot's natural movement. Moulded Ortholite sockliner - Is anti-microbial and breathable to maintain comfort.