VIVO Saddle Stool with Wheels (CHAIR-S03SD)

Pros

• +Saddle posture engages core through spine extension, not knee weight transfer
• +Lowest price in the active-seating lineup at $80
• +Adjustable height covers standard 24-30" desk heights
• +Rolling base for desk-zone repositioning
• +Smaller footprint than kneeling chairs

Cons

• −No back support whatsoever — not for users who need lumbar pressure relief
• −Polarizing aesthetic — saddle shape is unusual on a standard desk
• −Less core engagement than rocking-base kneeling chairs
• −Niche category — fewer owner reviews than DRAGONN or Defy Desk