Brand new, perfect saddle S-alloy rails Assists less flexible riders with Fizik’s Spine Concept Handmade in Italy Size Large 154cm DESCRIPTION: Fizik Aliante is light, flexible and agile, enabling you to perform at your best in long ride comfort. It features a composite fiberglass co-injected nylon shell for support with optimized stiffness to-weight construction – with Twin Flex technology which combines a strong, stiff carbon layer with a flexible, comfortable carbon layer – and an alloy K:ium rail for light weight and strength. Microtex cover protects the internals and it’s easy to clean.