The Fizik Aliante Gamma Versus Kium rail saddle features a recessed, center channel about 2cm wide to provide relief to sensitive areas incorporated into their well-proven Aliante model. This model is part of their 2013 "Highlighter Collection" with brightly colored details. The channel is created with extra padding for more cushioning as well as center relief.
The Fizik Aliante saddle is a go-to choice for excellent comfort combined with relatively light weight. It features a slightly wider 142mm width and soft padding. A carbon reinforced frame contains a central carbon Kevlar hammock to add a little give to the central portion of the saddle. The Aliante is a staff favorite at Excel Sports Boulder and several of us have ridden many thousands of miles on the Aliante model.