{"product_id":"english-elm-kelista-ergonomic-mid-back-office-chair-with-lumbar-support-flip-up-arms-smooth-roller-wheels","title":"Kelista Ergonomic Mid-Back Office Chair with Lumbar Support, Flip-Up Arms \u0026 Smooth Roller Wheels","description":"\u003cp\u003eEnjoy long hours of work or play in comfort and style with this ergonomic mid-back task chair. Designed for breathability and support, it pairs a ventilated mesh back and built-in lumbar support with a cushioned waterfall seat and flip-up arms to reduce shoulder strain and allow easy desk access. Smooth 360° swivel, pneumatic height adjustment and adjustable tilt tension let you personalize your seating position, while durable materials and easy-clean construction keep the chair looking great day after day. \u003c\/p\u003e\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 24.5\"W x 25.5\"D x 37.5\"–41.25\"H (seat height adjustable)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eErgonomic Support:\u003c\/strong\u003e Ventilated mesh back with built-in lumbar support to promote better posture and reduce back fatigue\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCushioned Comfort:\u003c\/strong\u003e Contoured waterfall seat with 3\" of foam padding and breathable mesh upholstery for reduced pressure on legs\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFlip-Up Arms:\u003c\/strong\u003e Padded armrests rotate 90° and flip up to clear the workspace or allow closer desk positioning\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAdjustability:\u003c\/strong\u003e Pneumatic seat height adjustment, tilt lock mechanism for upright position, and tilt tension knob to control recline resistance\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSmooth Mobility:\u003c\/strong\u003e 360° swivel and transparent polyurethane roller wheels with ball-bearing motion for quiet, multi-surface movement\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Heavy-duty nylon base with metal and plastic components for stability and long-term use\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy Maintenance:\u003c\/strong\u003e Cleans with solvent-based cleaners (no water needed) for quick spill cleanup\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuick Assembly:\u003c\/strong\u003e Assembles in under 30 minutes with included materials and instructions\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eColor \u0026amp; Materials:\u003c\/strong\u003e Black mesh back and seat, black frame; constructed of foam, mesh, metal and plastic\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eContemporary Mid-Back Task Office Chair\u003c\/li\u003e\n\u003cli\u003eVentilated Mesh Back with Built-In Lumbar Support\u003c\/li\u003e\n\u003cli\u003ePadded Mesh Upholstered Seat and Flip-Up Arms\u003c\/li\u003e\n\u003cli\u003ePneumatic Height Adjustable 360° Swivel Waterfall Seat\u003c\/li\u003e\n\u003cli\u003eTilt Lock Mechanism rocks\/tilts the chair and locks in an upright position\u003c\/li\u003e\n\u003cli\u003eTilt Tension Adjustment Knob adjusts the chair's backward tilt resistance\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Nylon Base with Transparent Roller Wheels\u003c\/li\u003e\n\u003cli\u003eClean with Solvent Based Cleaner No Water Needed\u003c\/li\u003e\n\u003cli\u003eAssembles in Under 30 Minutes with Included Materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAdditional Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSeat-Size: 20.25\"W x 19\"D\u003c\/li\u003e\n\u003cli\u003eBack Size: 17\"W x 23\"H\u003c\/li\u003e\n\u003cli\u003eArm-Height From Floor: 26.25\" - 30.25\"H\u003c\/li\u003e\n\u003cli\u003eArm-Height From Seat: 8\"H\u003c\/li\u003e\n\u003cli\u003eSeat Height: 17.25\" - 20.75\"H\u003c\/li\u003e\n\u003cli\u003eAssembly Required: Yes\u003c\/li\u003e\n\u003cli\u003eFinish: Black Nylon\u003c\/li\u003e\n\u003cli\u003eMaterial: Foam, Mesh, Metal, Plastic\u003c\/li\u003e\n\u003cli\u003eBack Material: Mesh\u003c\/li\u003e\n\u003cli\u003eFrame Material: Plastic\u003c\/li\u003e\n\u003cli\u003eSeat Material: Mesh\u003c\/li\u003e\n\u003cli\u003eArm Material: Mesh\u003c\/li\u003e\n\u003cli\u003eFill Material: Polyurethane Foam\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 Year Limited\u003c\/li\u003e\n\u003cli\u003eItem Weight: 33.7\u003c\/li\u003e\n\u003cli\u003eAdjustable: Yes\u003c\/li\u003e\n\u003cli\u003eAdjustable Arms: Yes\u003c\/li\u003e\n\u003cli\u003eArms: Yes\u003c\/li\u003e\n\u003cli\u003eMobile: Yes\u003c\/li\u003e\n\u003cli\u003eResidential Use: Yes\u003c\/li\u003e\n\u003cli\u003eRated For Commercial Use: Yes\u003c\/li\u003e\n\u003cli\u003eSeat Thickness: 3\u003c\/li\u003e\n\u003cli\u003eDegree of Swivel: 360\u003c\/li\u003e\n\u003cli\u003eBack Color: Black\u003c\/li\u003e\n\u003cli\u003eFrame Color: Black\u003c\/li\u003e\n\u003cli\u003eSeat Color: Black\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eConfig Color: Black Mesh\u003c\/li\u003e\n\u003cli\u003eStyle: Contemporary\u003c\/li\u003e\n\u003cli\u003eAge Group: Adult\u003c\/li\u003e\n\u003cli\u003eCushion Attachment: Fixed Seat\u003c\/li\u003e\n\u003cli\u003eFloor Glides: Casters\u003c\/li\u003e\n\u003cli\u003eRecommended Room: Home Office\/Study;Office\u003c\/li\u003e\n\u003cli\u003eBack Type: Mid\u003c\/li\u003e\n\u003cli\u003eArm Type: Flip-Up\u003c\/li\u003e\n\u003cli\u003eBack Style: Curved\u003c\/li\u003e\n\u003cli\u003eBase Style: 5-Star\u003c\/li\u003e\n\u003cli\u003eSeat Shape: Square\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eProduct Care\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eS-Solvent based cleaner - no water\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCAL 117 Certified: Yes\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\u003csmall\u003eNote: Product descriptions may reference specific features of \u003cstrong\u003eBL-X-5M-BK-RLB-GG-GIGA\u003c\/strong\u003e. You will receive the exact product according to the options (color, size, material, shape, etc.) you select on this page.\u003c\/small\u003e","brand":"English Elm","offers":[{"title":"White Mesh\/Black Frame","offer_id":47505823105191,"sku":"EE4934","price":248.0,"currency_code":"USD","in_stock":true},{"title":"Light Gray Mesh\/White Frame","offer_id":47505823137959,"sku":"EE4935","price":276.0,"currency_code":"USD","in_stock":true},{"title":"Blue Mesh\/White Frame","offer_id":47505823170727,"sku":"EE4936","price":276.0,"currency_code":"USD","in_stock":true},{"title":"Black Mesh\/White Frame","offer_id":47505823203495,"sku":"EE4937","price":276.0,"currency_code":"USD","in_stock":true},{"title":"Red Mesh\/Black Frame","offer_id":47505823236263,"sku":"EE4938","price":248.0,"currency_code":"USD","in_stock":true},{"title":"Black Mesh \u0026 LeatherSoft\/Black Frame","offer_id":47505823269031,"sku":"EE4939","price":241.0,"currency_code":"USD","in_stock":true},{"title":"Dark Gray Mesh\/Black Frame","offer_id":47505823301799,"sku":"EE4940","price":248.0,"currency_code":"USD","in_stock":true},{"title":"Black Mesh\/Black Frame","offer_id":47505823334567,"sku":"EE4941","price":234.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0312\/6968\/3245\/files\/BL-X-5M-WH-RLB-GG.jpg?v=1768492495","url":"https:\/\/englishelm.com\/products\/english-elm-kelista-ergonomic-mid-back-office-chair-with-lumbar-support-flip-up-arms-smooth-roller-wheels","provider":"English Elm","version":"1.0","type":"link"}