Using the Narrow width (132mm) on road bikes. Firm but not overly hard, with tough material that won't scratch easily. Saddle has moderate side-to-side curve that I find comfortable. Good cushioning particularly in nose. Two other widths and also comes in a cut-out design. The Inox rails extend down more than needed for a single-bolt seatpost but works well with my Thomson post that has a taller clamp area. The mounting area of the rails could be a little longer.
Picked up a B-stock version for a bargain. I like the design because of the curved side-to-side profile and the length for sliding forward when I want. The saddle rails allow easy adjustment of any seatpost with side bolts, but the rails could be longer for more fore-aft adjustability. Moderately firm, well made and my narrow version weighs 213g. Good to see three sizes available - the Narrow (132mm width) is one of the best saddles under 140mm in width.