Based on the SLR Boost Endurance Superflow, the Gravel model adds reflectivity to the back of the saddle for greater visibility and uses Light Gel padding for added comfort over rough roads. Like other saddles with the Boost designation, this short-nosed saddle helps us find a stable and comfortable position even when pushing the pace and our weight further forward on the nose. The Superflow cutout relieves perineal pressure and improves blood flow to the area, helping to reduce numbness or pain on long days in the saddle. The Fibra-tek upper resists wear and tear from those many miles, while the 7mm titanium rails are light and strong to keep you rolling.