Seduna / Seduna-Style Chairs – Possibility

A brand called Seduna (also spelled Seduna Furniture) produces office seats with names like Evora, Fortuno, Benin, and Aris—many featuring ergonomic designs, mesh backs, 4D armrests, adjustable headrests, and synchro mechanisms. If your chair name is "Sedana II", it may be a misheard version of one of those ergonomic models .

Common Features in That Family of Chairs
Ergonomics

• Sync-tension or synchro-tilt mechanism with options to lock in multiple positions

• Seat and back recline together for better posture support

• Adjustable headrest and movable lumbar support on some variants

Adjustability

• 4D armrests (height, width, depth, pivot) on some executive models

• Seat depth sliding and backrest height/lumbar adjustment on higher-end versions

Materials & Build

• Breathable mesh upholstery for backrest; padded fabric or mesh seat

• Sturdy frames and bases (plastic or aluminium) with caster wheels

• Weight capacity generally rated around 150 kg 

If You’re Trying to Identify Sedana II, Here's What to Check

• Does the chair resemble any of the known models like Evora, Fortuno, or Benin?

• Does it have mesh or fabric back, ergonomic headrest, or 4D adjustable arms?

• Are there any labels or model stickers on the underside or mechanism?

• Does the recline or tilt feel smooth and adjustable, or more basic?