What Our Gearhead® Experts Are Saying: "This saddle is next-level. The 3D-printed zones actually work—I feel the difference in support between nose and tail, and it never packs out. I’ve been on five-hour rides and still felt dialed. Lightweight, futuristic, and surprisingly comfortable."When we're pushing for peak performance on long, fast road days, the SLR Boost 3D Kit Carbonio Superflow brings the comfort and technology we need. Selle Italia built this saddle with 3D-printed zonal cushioning to give us targeted support right where we need it—firm under sit bones, softer under sensitive areas—without adding bulk or weight. This high-performance design also features an extended carbon rail length for better adjustability on today’s aggressive geometry bikes. A Superflow cut-out relieves pressure, while the neutral saddle shape adapts to both dynamic and static riders. Lightweight and incredibly tuned, it’s our go-to when we’re chasing watts, KOMs, or just big weekend mileage.