Gaerne Carbon G. Sincro Mountain Shoes. Tested on the feet of the sport's top professionals, the Gaerne Carbon G. Sincro Mountain Shoes represent the Italian manufacturer's highest achievement in terms of technology, innovation, and function. Its foundation is Gaerne's EPS Efficient Pedaling System full carbon fiber sole that not only provides exceptional stiffness, but also helps keep the weight to a minimum. The shoes utilize Gaerne's Diagonal Closure System with each shoe featuring a pair of BOA IP 1 micro adjustable reel systems and a Velcro strap to keep your feet snug and secure. These three closure elements, independent of one another, are positioned laterally to avoid pressure points on the instep as well as provide a custom and quick closure every ride. The synthetic leather upper is supple, durable, and well ventilated with laser perforations while the shoe's sole lugs ensure there's ample traction and firm footing once you're off the bike.