What Our Gearhead(R) Experts Are Saying:"The SLR shape has been a benchmark for road saddles for a long time, and the Advan Fill makes it accessible without watering it down. The padding is placed exactly where contact pressure lands rather than spread across the whole saddle, so it feels supportive on long rides without the dead, spongy feel that kills power transfer."Why We Like ItSelle Italia updated the PU construction on the Advan Fill to trim weight without reducing durability, and the tubular steel rails keep the overall cost in reach. The SLR silhouette is unchanged from the top of the line, so the Advan Fill fits and handles identically to the other options in the family.