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ProtoArc Flexer Pro Ergonomic Mesh Office Chair combines adjustable two-piece lumbar support, sliding seat, 4D armrests and multi-level recline to deliver tailored comfort for long hours at home or in the office.
Tips: Supports users up to 280 lbs and features quick 10-minute assembly with no extra tools required.











Flexer Pro is designed for people who want ergonomic support that feels refined, not bulky. Its breathable mesh back keeps air moving through long work sessions, while the two-piece lumbar support helps create a closer fit to your natural curve for better comfort and posture throughout the day.
What makes Flexer Pro easier to live with is how adjustable it feels without becoming complicated. The sliding seat helps fine-tune leg support, the 4D armrests adapt to different desk setups, and the 95°–130° recline with tilt tension gives you more control from focused work to quick recovery breaks. It is a better fit for stylish home offices where comfort, support, and flexibility all matter.
Flexer Pro combines a breathable mesh back, adjustable two-piece lumbar support, a sliding seat, 4D armrests, and a wider 95°–130° recline range. It is designed to offer a more personalized fit for long home office and computer work sessions.
Flexer Pro is made for users who want stronger ergonomic adjustability without sacrificing a clean, modern look. It works especially well for home offices, desk setups, and long daily sitting sessions.
Flexer Pro features a two-piece lumbar support system with height adjustment from 0 to 2 inches. This helps you better align the chair with your lower back for improved support and reduced fatigue.
Yes. The sliding seat mechanism helps adjust seat depth for a better match across different body sizes, helping reduce leg pressure while maintaining back support.
Flexer Pro reclines from 95° to 130° with auto-sync support. You can use the tilt lock positions for different sitting modes and adjust the tilt tension to make the recline feel easier or firmer.
The back uses a breathable transparent mesh for airflow and long-sitting comfort. The seat uses high-density 55kg/m³ foam wrapped in OEKO-TEX certified fabric for balanced support and a cleaner feel over time.
A side-by-side overview of Flexer Pro and Flexer (Standard).
| Parameter | Flexer Pro | Flexer (Standard) |
|---|---|---|
| Recommended User Height | Approx. 5'2"–6'3" | Approx. 5'1"–6'3" |
| Lumbar Support | Two-piece lumbar support with 0–2" height adjustment | Standard lumbar support / not two-piece |
| Back Material | Breathable transparent mesh back | Breathable Wintex mesh back |
| Seat Cushion | High-density foam, 55kg/m³, OEKO-TEX certified fabric | High-density foam, 55kg/m³, OEKO-TEX certified fabric |
| Seat Depth Adjustment | Sliding seat adjustment | Sliding seat adjustment up to 1.6" |
| Armrests | 4D adjustable armrests | Soft adjustable armrests with 3.9" height range |
| Recline Range | 95°–130° auto-sync recline | 95°–125° auto-sync recline |
| Lock Positions | 95° / 105° / 115° / 130° | 95° / 110° / 125° |
| Tilt Tension | Adjustable tilt tension control | Not highlighted |
| Best For | Users who want higher adjustability and stronger ergonomic support | Users who want simple ergonomic comfort for home office use |
Notes: Product comfort and fit may vary depending on body shape, desk height, and personal sitting preference. Adjust lumbar support, seat depth, armrests, recline, and tilt tension after assembly for the best experience.
10-Year Limited Warranty: Covers defects in materials and workmanship under normal use for ten (10) years from the purchase date. Terms and claim process may vary by sales channel.
Specs
Designed to fit users approximately 5'2"–6'3"
Home office
Computer work
Long sitting sessions
Users who want style and ergonomic support
Two-piece lumbar support with 0–2" height adjustment for a more personalized lower back fit
Backrest: Breathable transparent mesh back
Seat Cushion: High-density foam, 55kg/m³
Fabric: OEKO-TEX certified fabric
Lumbar Support: Two-piece lumbar support
Lumbar Height Adjustment: 0–2"
Seat Depth Adjustment: Sliding seat
Armrests: 4D armrests
Recline Range: 95°–130° auto-sync recline
Tilt Lock Positions: 95° / 105° / 115° / 130°
Tilt Tension: Adjustable tension control
Balanced support designed to reduce pressure, improve posture, and stay comfortable through long work hours
Flexible breathable mesh promotes airflow for a cooler sitting experience while maintaining a clean modern look
Plastic + steel seat shell helps reduce moisture buildup and supports long-term freshness
For the best fit, adjust the lumbar support, seat depth, armrests, recline angle, and tilt tension after assembly