Series M1 Designed from a Genuine Understanding of Real Users

Have you ever noticed your own habits throughout the day? You rarely stay in one posture for more than a few minutes. One moment you are leaning back to reflect on a task, the next you are reaching over to reply to a message, turning around to catch up with a colleague, or reclining fully while waiting for a file to load. Choosing a great office chair is no longer about finding something that locks you into a static pose.

Modernform, a leading office furniture brand with over 45 years of seating design expertise—developing more than 20 distinct designs and selling over 3,000,000 chairs since 1985—deeply understands the real behaviors of everyday workers. This rich heritage comes to life in the Series M1, a brand-new ergonomic chair designed to move seamlessly with your body under the concept of “Human-engineered Moves Naturally.”

Shifting the Design Paradigm: From Forced Posture to Natural Movement

Traditional ergonomic chairs often focus solely on locking the user into a rigid "ideal" posture. But we asked a new question: Why force people to adapt to a chair when a chair can be engineered to understand human natural movement?

Our core insight is simple: the human body is not meant to sit completely still. Healthy sitting isn't about remaining upright all day—it’s about allowing the body to shift, recline, and adjust smoothly based on the task at hand. By combining deep ergonomic science with the actual work habits and body proportions of Thai users, the Series M1 proves that true ergonomics should never restrict you to a single posture.

Human-engineered: Rooted in an understanding of human anatomy, real sitting postures, and natural daily movement patterns.

Moves Naturally: A flexible frame that adjusts to your body’s movements in perfect balance, whether you are sitting upright or reclining to relax.

3 Key Innovations That Set the Series M1 Apart

DUOFLEX Frame (Adaptive Backrest): A dual-layer backrest structure that combines structural strength with dynamic flexibility, effortlessly adapting as your body shifts.

FLEXSYNC Technology (Effortless Recline): A responsive back support system that reacts to your movement, relieving pressure on the lower back for a smooth, natural recline.

Cool Gel Seat (All-Day Thermal Comfort): An integrated cool-gel layer designed to absorb and dissipate heat away from the hips and thighs, keeping you cool and comfortable without moisture buildup.




Because your back copes with constant movement throughout the day—shifting, leaning, stretching, and changing positions—the Series M1 was engineered to treat the backrest as an active partner to your body, rather than just a passive surface.

Experience the comfort of Series M1 – The Best Thai Ergonomic Chair today at Modernform Showrooms: Srinakarindr, Crystal Design Center (CDC), and Ploenchit.