Ergon SMC Core Men's Saddle. Features: Ergonomic MTB touring saddle designed to effortlessly follow pelvic movements, reducing pressure on sit bones Floating TwinShell design dampens shock before it reaches lower back Rearward positioned pressure relief channel prevents discomfort and numbness Flat top saddle with thicker and softer padding than SM models Orthopedic comfort foam Engineered in Germany Specs: Model Shell Rails:SMC Core/composite/CrMo Top:microfiber Color:black/gray Ergon Size:S/M Weight:345g