Patented Body Geometry design is lab-tested to assure blood flow to sensitive arteries. Stiff, carbon-reinforced shell for longevity and all-day riding efficiency. Lightweight and supportive PU foam with gel inserts for increased comfort on long rides. Light, durable, and hollow Cr-Mo rails. Tough, lightweight, and water-resistant Micromatrix™ cover. Level 2 padding: Medium density foam for bike feel with additional cushioning. SWAT™-compatible mounts molded into the saddle base allow for sleek and integrated storage solutions. Size 143mm / Weight 273g. Size 155mm / Weight 285g. Size 168mm / Weight 285g. NOTE: 1cm shorter than 2015 model.