Most modern stair runners are made from synthetic fibers, most commonly 100% polypropylene and 100% polyester. A few listings also use faux wool fibers.
Common runner sizes range roughly from 72" to 96" in length and about 24" to 32" in width, suitable for most stairs and hallways.
Many runners offer stain resistance, skid- or non-slip backing, and some listings also note fade resistance.
Look for runners labeled cut-to-size or that can be trimmed, plus ultra-thin or low-pile construction so they won’t obstruct doors. Using a rug pad is commonly recommended for placement and stability.
Several descriptions emphasize kid- and pet-friendly design, citing stain-resistant materials, easy cleaning or machine-washable options, and constructions that resist trapping pet hair and withstand daily use.