Ergonomic design and sleek mesh-back looks make this the choice for managers and executives. Quality woven-tension mesh molds to offer excellent support snd coupled with the adjustable lumbar support provides superb back comfort. The thick, highly-resilient , molded foam with waterfall edge is covered with Air Grid Mesh to add to total comfort. Strata's synchro-tilt control with 2:1 back-to-seat tilt ratio with 5-position muti-lock completes the ergonomic excellence of the Strata. Powder coated, die-cast aluminum bases are on all Strata. A choice of coordinating guest chairs, four-legged or cantilever base, is available to complement the Strata task, managerial, and conference seating offerings.