Fan Shaped Back Design - Requires a two piece upholstery solution allowing the support brackets to be concealed. Compound curved seat cushion is constructed from high density, highly resilient Ultracell Bio Foam. Seat width measures a generous 19” between the arms. Bariatric model measures 31.5” between arms. 1.5” Ultracell high density and highly resilient Ultracell Bio Foam on the seat. Seat upholstery features continuous border on the sides. Underside of seat surface can be completely sealed. Arm extends forward and has a flat comfortable profile for ease of grip for entry and exit into the chair. Front and back legs are curved, creating greater stability and a wall saver frame design. Stacking capability: All standard size 4 legged models stack 5 high on the floor and 8 high on the Dolly.