While the Skyline may be Astute’s most basic line of saddle the materials and design are not. The Skyline utilizes many of the same features found in the Skylite and Skycarb models. Three densities of foam and a memory foam layer add comfort. Padding is supported by two ultra-thin, lightweight base layers. One is even reinforced by a carbon/nylon fiber material. It all rests on titanium alloy rails. The total weight is only 200 grams. The Skyline comes in both SR, traditional and VT, cut-out versions.