HKM-114515
Luxury 7D Ergonomic Armrest Office Chair
Precision-crafted for the modern professional. Where enduring comfort meets refined executive style.
Elevate your workspace with a seating solution engineered to support your body through the longest workdays. The HKM-114515 combines premium leather upholstery, an advanced 7D adjustable armrest system, and a meticulously sculpted ergonomic frame to deliver a chair that adapts to you—not the other way around.
Designed Around You
A closer look at the features that set the HKM-114515 apart from conventional office seating.
7D Armrest Precision
Seven independent axes of adjustment allow you to position the armrests exactly where your body needs support, reducing shoulder fatigue and wrist strain.
Ergonomic Posture Support
The sculpted backrest follows the natural curvature of your spine, promoting healthy sitting posture throughout hours of focused work.
Premium Leather Upholstery
Supple yet durable leather that breathes naturally, resists wear, and develops a distinguished patina over years of dependable service.
Executive Aesthetic
A sleek, contemporary silhouette that complements any office environment—from minimalist home setups to formal corporate boardrooms.
7D Armrest System: A New Standard in Adjustability
Conventional office chairs offer one or two directions of armrest movement. The HKM-114515 redefines what's possible with a true 7-dimensional adjustment mechanism that addresses the full biomechanical chain from your fingertips to your shoulders.
Industry Insight
Research in occupational ergonomics consistently shows that fixed or limited armrests can contribute to forearm fatigue, wrist extension stress, and shoulder tension over prolonged sitting periods. Multi-axis adjustability is the single most impactful factor in reducing upper-body musculoskeletal strain during desk work.
Vertical Height Adjustment
Seamlessly raise or lower the armrests through a generous range to match your desk height and elbow position, keeping your forearms parallel to the floor.
Depth & Fore-Aft Slide
Slide the armrest pads forward or backward to support your elbows whether you're typing, reading, or leaning back during calls.
Angle Rotation & Pad Swivel
Rotate the entire armrest assembly and independently swivel the cushioned pads to accommodate angled typing positions, gaming stances, or relaxed reading postures.
Lateral Width Positioning
Move each armrest inward or outward independently to find the ideal width for your shoulder span—critical for users with broader or narrower frames.
Ergonomic Engineering: Beyond Basic Comfort
The HKM-114515 isn't merely a chair—it's a proactive wellness tool for your workday. Every contour, curve, and cushion has been shaped with a deep understanding of seated biomechanics.
Contoured Lumbar Region
The backrest's subtle S-curve mirrors the spine's natural lordosis, providing gentle pressure to the lower back without feeling intrusive.
Waterfall Seat Edge
The front edge of the seat cushion slopes downward to relieve pressure on the back of your thighs, promoting healthy circulation during extended sitting.
High-Density Foam Core
Multi-layer foam construction resists bottoming out even after years of daily use, maintaining consistent support without permanent deformation.
360° Swivel & Tilt Tension
Smooth rotation and adjustable tilt resistance let you recline comfortably while maintaining control—ideal for quick transitions between focused work and relaxed thinking.
Materials That Last
The HKM-114515 is wrapped in premium-grade leather selected for its balance of softness, breathability, and tensile strength. Unlike bonded leather or low-grade synthetics, this upholstery is designed to withstand the rigors of daily use while aging gracefully.
Material Knowledge
High-quality leather office upholstery typically outlasts fabric alternatives by 2–3x in abrasion resistance tests. The natural grain structure allows micro-ventilation, reducing heat buildup during long sitting sessions—a critical advantage over fully synthetic covers that trap body heat.
Breathable Natural Grain
The leather's micro-pore structure allows constant airflow, keeping the seating surface cool and comfortable throughout the day.
Reinforced Stitching
Double-stitched seams at all high-stress points ensure the upholstery remains intact through years of daily entry and exit motions.
Stain-Resistant Finish
A protective topcoat helps repel minor spills and makes routine cleaning effortless—simply wipe with a soft, damp cloth.
Technical Specifications
Every measurement reflects a design choice made to support a broad range of body types while maintaining optimal ergonomic alignment.
45.3 – 49.2 in
Overall Height (115–125 cm)
330 lbs
Weight Capacity (150 kg)
~55 lbs
Net Weight (~25 kg)
20.5 in
Seat Width (52 cm)
19.7 in
Seat Depth (50 cm)
28.3 in
Backrest Height (72 cm)
Armrest Adjustability
Height: 7.1–11.0 in (18–28 cm)
Depth Slide: ±1.6 in (±4 cm)
Width Range: 17.7–22.8 in (45–58 cm)
Swivel: ±30°
Rotation: 360°
Built for Every Workstyle
Whether you're coding for hours, leading virtual meetings, or crafting creative work, the HKM-114515 adapts to the rhythm of your day.
Deep Work Sessions
Lock into focus mode with armrests dialed to your perfect position, minimizing micro-adjustments that break concentration.
Video Conferencing
The upright posture support keeps you looking alert and professional on camera, while subtle recline options offer relief between calls.
Home Office Integration
A refined silhouette that doesn't scream "office furniture"—blends naturally into living spaces while delivering full professional-grade support.
Collaborative Spaces
Quick-adjust armrests let different users find their ideal setting in seconds—perfect for hot-desking environments and shared offices.
Frequently Asked Questions
Clear answers to common questions about the HKM-114515.
What does "7D" armrest adjustment actually mean?
The "7D" designation refers to seven independent axes of movement built into each armrest: vertical height adjustment, forward/backward depth sliding, lateral width positioning (inward/outward), angular rotation of the armrest assembly, independent pad swivel, and micro-level tilt for the cushion surface. This comprehensive range ensures that virtually any user—regardless of body proportions or desk setup—can find a position that keeps their shoulders relaxed and wrists neutrally aligned.
Is the leather genuine or synthetic?
The HKM-114515 uses premium-grade genuine leather for the primary contact surfaces. This leather is selected for its ideal balance of softness, breathability, and structural integrity. It features a natural grain pattern that allows micro-ventilation, helping to regulate temperature during long sitting sessions. A protective topcoat adds resistance to minor spills and daily wear without compromising the leather's tactile quality.
How does this chair support proper posture over long periods?
The chair's ergonomic design incorporates multiple posture-supporting features: a contoured backrest that follows the spine's natural S-curve, a waterfall-edge seat cushion that reduces pressure on the thighs, high-density foam that resists sagging, and the fully adjustable 7D armrests that prevent shoulder hunching. Together, these elements encourage a neutral seated posture where the pelvis is slightly tilted forward, the spine maintains its natural curves, and the arms rest comfortably at desk height.
What body types does this chair accommodate?
The HKM-114515 is designed to comfortably support users weighing up to 330 lbs (150 kg). The seat width of 20.5 inches (52 cm) and depth of 19.7 inches (50 cm) accommodate a broad range of body frames. The adjustable armrest width range of 17.7–22.8 inches (45–58 cm) and generous height adjustment ensure that both petite and larger-framed individuals can find their optimal seating position.
Does the chair require assembly, and what tools are needed?
Yes, the HKM-114515 ships in a single box with all components and hardware included. Assembly typically takes 20–30 minutes and requires only the included hex key—no additional tools are necessary. A detailed illustrated instruction manual guides you through each step, from attaching the base and gas cylinder to securing the backrest and armrests.
Purchase with Confidence
Every HKM-114515 order is backed by comprehensive coverage designed to give you peace of mind from day one.
Free Shipping
Complimentary standard shipping on all orders. Your chair arrives carefully packaged with full tracking provided from dispatch to delivery.
180-Day Purchase Protection
Extended coverage against manufacturing defects. If anything goes wrong within 180 days of delivery, we'll make it right at no cost to you.
30-Day Money-Back Guarantee
Not completely satisfied? Return your chair within 30 days for a full refund. We believe you should love your seating—or you shouldn't pay for it.
24-Month Warranty Service
Two full years of comprehensive warranty coverage on all mechanical components, including the gas lift, tilt mechanism, casters, and armrest adjustment systems.
HKM-114515 Luxury 7D Ergonomic Armrest Office Chair — Engineered for the way you work.
Nationwide Service Network & Support
With over 3,600+ authorized service centers across the United States, we ensure comprehensive after-sales support for your product, giving you complete peace of mind.
We understand that maintenance needs may arise. When you purchase from us, you gain access to our unparalleled service ecosystem designed for maximum convenience and reliability.
1. DIY Repair & Parts Replacement:
For minor repairs or part replacements that can be handled personally, we provide cost-price genuine parts during the warranty period. Each order is accompanied by clear, step-by-step video tutorials to guide you through the self-repair process seamlessly.
2. Professional Servicing:
For issues requiring expert attention, simply contact our support team. We will locate the nearest authorized service center based on your order and location details. You only need to bring your product to the designated center. Once servicing is complete, we will notify you for pickup. All repairs are free during the warranty period; afterward, only cost-based fees apply.
Every product on Hekomart.com is expertly curated from thousands, quality tested, and lifestyle approved. Elevate your everyday.
Express Delivery Priority - Where Speed Meets Satisfaction
At Hekomart.com, we understand the anticipation that comes with every online order. While most platforms rely on standard economy shipping, we prioritize your excitement by strategically selecting premium express carriers to accelerate deliveries. Our intelligent logistics system analyzes real-time data to optimize routes, partnering with globally-recognized couriers like DHL, FedEx, and UPS to ensure 30% faster doorstep arrivals* than industry averages.
Every package receives 24/7 tracking visibility and proactive delivery updates, transforming waiting time into confidence. For time-sensitive purchases, our "Expedited Service Guarantee" offers optional priority handling at no extra cost, because your satisfaction isn't just a goal – it's the core of our delivery DNA.
*Based on internal 2025 data comparing standard shipping durations across major platforms. Delivery times vary by destination and customs procedures.
Credit Card 180 Days Purchase Protection
The 180 Days Purchase Protection protects the buyer if an item purchased has not been shipped or if a shipped item is significantly not as described by the seller. The 180 Days Purchase Protection covers all purchases and payments made through our website. We accept Visa, Master Card, American Express, and Discover Card. If you don't receive the item that you ordered, or it shows up significantly different from its description, you may qualify for Purchase Protection, and we'll reimburse you for the full purchase price plus any original shipping costs, subject to terms and limitations. If you are charged for a transaction that you didn't make, let us know within 60 days, and we've got you covered.
30 Days Money-Back Guarantee
We are confident that our products are of great quality and even better value. However, if upon receiving and inspecting your item you decide that you want to return it, you will have 30 days as of the date of shipment arrival to return it for a refund minus the shipping cost. No restocking charges. Any additional fees associated with a purchase transaction will be deducted from the amount of the refund.
24-Month Extended Warranty Service
If you purchase products from our website, you have 24 months to request repairs or replacement if any products turns out to be faulty or are not as advertised. During the warranty period if any product is found to have a manufacturer defect, we will repair or replace the defective part(s). If a product cannot be repaired or replaced within a reasonable time, you can request a refund or price reduction. We are confident that our products are of great quality and even better value. However, if upon receiving and inspecting your item you decide that you want to return it, you will have 30 days as of the date of shipment arrival to return it for a refund minus the shipping cost.
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