Sidi's Dominator Fit Shoes Megas boast their Technomicro uppers, which are ultra comfortable and incredibly durable to hold up under even the most extreme conditions year in and year out (these are the Megas, their wide-fit model). Plus, for even more support and comfort, there are soft, padded tongues, conforming plastic heel cups and cooling mesh panels. Then, on the business side, you get Sidi's stiff, ergonomic Competition 2 soles that deliver amazing pedal power and support with quality treads and just enough flex for when you have to hoof it. You also get Sidi's Arch Compression Straps and Caliper buckles for dialing in a truly custom fit even while riding. The Dominators have long been Sidi's most popular mountain bike shoes, and they'll soon become your favorites, too.