Adding a low backrest makes for an inspired move with RS Barcelona's ur-stool Umbra. Ombra means "shadow" in Catalan, and the ubiquitous stool created by Emiliana Design Studio also gets points for its generous proportions and ergonomically shaped seat. The seating is fashioned in lightweight but durable steel with a sturdy electro-coated finish. The range of appealing polyester-paint colors serve equally well indoors or outside, just the ticket for a spell of comfortable sitting.