361-SPIRE 4 (2E)RUNNING PROFILE Ultimate comfort is the concept behind this top of the range neutral running shoe. This 4th version now provides even more comfort through new midsole materials and an updated Ortholite insole. FEATURE BENEFIT Upper features a breathable knitted upper with a roomier vamp promoting more ventilation and natural foot movement. MORPHIT construction in the mid foot and heel to provide a comfortable, secure and supportive environment.