Given the price of many high-end saddles, you might be better off just papier-macheing $100 bills into a custom bike seat instead of buying something fancy. While that might be true with many offerings, Fi'zi:k's Gobi M3 Saddle with K:ium rails is a whole bunch more affordable, but doesn't give up the flex and comfort of more expensive models. Fi'zi:k lowered the price by making the rails of K:ium alloy instead of carbon, which is a whole lot more expensive and only slightly lighter. The saddle itself is a mountain-bike friendly combination of features cribbed from the Arione and Aliante, with WingFlex and TailFlex zones that give gently, allowing easy and comfortable riding without sacrificing overall stiffness. TailFlex will even conform to your anatomy over time, so you'll have a slight individually tailored "pocket" after a few weeks in the saddle. The overall flex of the Gobi comes from the fiberglass thermoplastic composite shell, which is firm but not killer. Microtex and Cordura combine to make the cover sleek and durable, and supplies just enough friction to keep you from slipping around when you can't afford to.