Tone on Tone: wool sisal style staircase runner with very narrow binding. It's installed about 3 inches from the sides (and cut out around the newel post) in the Hollywood style, which is tailored and bespoke.
2017 Carpet area rug and runner trends. 9 Growing carpet trends for Includes style, texture, color trends for wall to wall carpeting, stair runners and area rugs. Gray carpet runners for steps (Step Interior Stair Runners)