With its unique blend of midcentury modern aesthetics and science-backed ergonomics, the Zeph Chair without Arms delivers good looks and comfort. The simple design features an innovative kinematic monoshell that provides complete support without needing any user adjustments. Provides total ergonomic support – no adjustments necessary. Unique blend of midcentury modern aesthetics and science-backed ergonomics. The knit cover is made from 50% recycled fibers and is 3D-knit so there's zero waste. Choice of 7 fully dipped colors and 13 fabrics. Available with arms. An additional 5 fabrics are available in Cocoa, Persimmon, Falcon, Patina and Boysenberry. The Aloe and Ultramarine are available with every shell color. Please contact us at [email protected] for help ordering these unique options! Materials: Polymer shell with a 5-star height-adjustable base and optional 3D knit fabric. Dimensions: Without Seat Pad: 29.25-34.875 H x 21.625 W x 18.875 D; Seat: 14.75-20.25 H x 15.625-22.25 W x 17 D inches; Weight: 19.25 lbs; Weight Capacity: 350 lbs With Seat Pad: 29.25-34.875 H x 24.25 W x 19.125 D; Seat: 14.875-20.375 H x 15.625-22.25 W x 17.25 D inches; Weight: 19.25 lbs; Weight Capacity: 350 lbs Downloads: Herman Miller Warranty Information Assembly Instructions