Selle san marco regal evo saddlethe selle san marco regal evo saddle combines retro style with modern technology plus the comfort and guarantee of traditionally shaped saddles advanced paddingbiofoam padding provides comfort that lasts all day as this advanced material follows the movement of your pelvis as you pedal it is also low in weight and waterproof too lightweight and strong the xsilite rails are a mix of silicone with titanium and carbon fibre particles they keep weight low an