The Salomon Sonic Ra is the central shoe to the SONIC RA story. This is a high-mileage, reliable and lightweight running shoe. At 245 grams the Salomon Sonic Ra can easily pass as a race day shoe. The fit and feel is a comfort orientated design that has a responsive amount of flex and road feel. The full length VIBE cushioning is noticeable with every kilometer you run, and holds up especially well for longer runs up to Marathon distance.