Manager Series
HKM-538835 Ergonomic Genuine Leather Office Chair
Precision-crafted for the discerning professional. Where luxury leather meets adaptive ergonomics, engineered to support every movement of your workday.
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Genuine Leather Luxury
Premium genuine leather upholstery delivers a refined aesthetic that ages gracefully, developing a rich patina unique to your use.
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Healthy Posture Design
Ergonomic contouring encourages natural spinal alignment, reducing fatigue and helping you maintain focus through extended sessions.
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Adjustable Backrest
Customize the recline angle to your preference—from upright focus to relaxed contemplation—with smooth, precise adjustment.
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Built-In Lumbar Support
Integrated lower-back support cradles the lumbar region, actively alleviating strain during prolonged sitting.
Signature Innovation
3D Multi-Directional Armrests
The HKM-538835 features advanced 3D armrests that adjust in three independent axes—vertically up to approximately 4 inches (10 cm), forward/backward up to 2 inches (5 cm), and with a swivel range of approximately 30°. This multi-directional freedom lets you dial in the precise support your forearms, wrists, and shoulders need. By reducing static muscle tension around the neck and shoulder girdle, these armrests help prevent the cumulative strain that leads to discomfort during marathon work sessions.
Spinal Care
Adjustable Backrest with Contoured Lumbar Support
The backrest reclines through a smooth range of approximately 90° to 135°, accommodating everything from intense keyboard work to relaxed reading or brief moments of reflection. The built-in lumbar support is anatomically contoured to match the natural curvature of the human spine, distributing pressure evenly across the lower back. By maintaining proper pelvic positioning, it helps mitigate the forward-slouching tendency that plagues desk workers, promoting circulation and reducing intervertebral disc pressure over hours of continuous use.
Materials & Durability
Genuine Leather, Built to Endure
Genuine leather is prized in fine furniture for its breathability, tactile warmth, and ability to develop character over time. Unlike synthetic alternatives that can crack or peel, quality genuine leather remains supple with basic care. The HKM-538835 pairs this premium upholstery with a robust internal frame engineered for daily use. The dense foam cushioning beneath the leather is formulated to resist sagging, retaining its supportive loft far longer than standard polyurethane foams. Every stitch, seam, and weld point has been reinforced to meet the demands of a professional environment where the chair may see 8 to 12+ hours of continuous daily use.
Why Ergonomics Matters
The science of sitting well—and how the HKM-538835 addresses each critical factor.
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Pressure Distribution
A well-designed chair spreads body weight across the seat and backrest, reducing peak pressure points that can compress soft tissue and impede blood flow.
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Dynamic Sitting
The adjustable backrest encourages subtle micro-movements throughout the day, keeping spinal discs nourished and muscles engaged rather than locked in one position.
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Postural Alignment
Lumbar support that matches the spine's natural lordotic curve helps maintain neutral pelvis positioning, reducing forward head posture and upper back rounding.
Designed for Your Work Style
Three common professional scenarios where the HKM-538835 truly excels.
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Deep Focus Sessions
When you're locked into complex analysis or creative flow, the chair fades into the background—silent support that never distracts.
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Video Conferencing
The genuine leather's refined appearance projects professionalism on camera, while the upright posture keeps you looking alert and engaged.
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Executive Office
A statement piece that signals attention to quality. The chair's presence complements wood, glass, and metal office aesthetics with understated elegance.
Technical Specifications
Key measurements and capabilities of the HKM-538835.
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300 lbs
Weight Capacity (136 kg)
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18–22 in
Seat Height Range (46–56 cm)
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90°–135°
Backrest Recline
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~4 in
Armrest Vertical Travel (~10 cm)
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~2 in
Armrest Fore-Aft Travel (~5 cm)
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~30°
Armrest Swivel Range
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21 in
Seat Width (53 cm)
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19 in
Seat Depth (48 cm)
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~55 lbs
Net Weight (~25 kg)
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44–48 in
Overall Height (112–122 cm)
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Genuine
Leather Grade
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Class 4
Gas Lift Cylinder
All specifications are approximate. Actual values may vary slightly due to manufacturing tolerances.
Genuine Leather
3D Armrests
Lumbar Support
Adjustable Backrest
Heavy-Duty Base
Executive Design
All-Day Comfort
Quiet Casters
Frequently Asked Questions
Everything you need to know about the HKM-538835.
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Is genuine leather easy to maintain?
Yes. Genuine leather requires only occasional care to remain beautiful for years. We recommend wiping the surface with a clean, slightly damp microfiber cloth every few weeks to remove dust and oils. For deeper conditioning, apply a quality leather conditioner once or twice per year. Avoid placing the chair in direct sunlight for extended periods, as UV exposure can gradually fade natural leather. With basic maintenance, genuine leather develops a distinguished patina that enhances its character over time.
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How does the 3D armrest adjustment work?
The 3D armrests on the HKM-538835 offer three independent adjustment axes. You can raise or lower the armrests vertically through approximately 4 inches (10 cm) of travel using the side-mounted lever. Slide them forward or backward by about 2 inches (5 cm) to match your forearm length and desk proximity. Finally, the pad itself swivels roughly 30° inward or outward, letting you find the most natural angle for your wrists during typing or mouse use. Each adjustment locks securely once set.
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What is the weight capacity of this chair?
The HKM-538835 is engineered to support up to 300 lbs (136 kg). The heavy-duty Class 4 gas lift cylinder, reinforced steel base, and robust internal frame work together to ensure stability and longevity across the full weight range. The chair has been cycle-tested to exceed industry durability standards for commercial-grade office furniture.
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Does the lumbar support adjust independently?
The built-in lumbar support is integrated into the backrest contour and provides consistent, anatomically shaped support throughout the recline range. While it is not a separate adjustable piece, its fixed position has been carefully calibrated based on anthropometric data to accommodate a broad spectrum of body types. The curvature naturally aligns with the lumbar lordosis of most adult users, and the depth of support increases slightly as you recline, which mirrors the spine's changing needs across different postures.
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Is assembly required, and what tools are needed?
Yes, some assembly is required. The HKM-538835 ships in one compact box with all hardware, an illustrated instruction manual, and the necessary Allen key included. Most users complete assembly in approximately 20–30 minutes. The process involves attaching the base, gas cylinder, seat mechanism, backrest, and armrests—all bolts align precisely thanks to tight manufacturing tolerances. No additional tools are needed.
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Can this chair be used on hardwood floors?
Absolutely. The HKM-538835 is equipped with smooth-rolling, quiet polyurethane casters that are gentle on hardwood, laminate, tile, and vinyl flooring. They glide silently and resist marking or scratching. For added floor protection on particularly delicate surfaces, we recommend using a chair mat—though most users find the standard casters perfectly suitable without one.
Purchase with Confidence
Every HKM-538835 order is backed by comprehensive coverage.
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Free Shipping on All Orders
Complimentary standard delivery to your doorstep. No minimum purchase required, no hidden fees—ever.
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180 Days Purchase Protection
A full six months of coverage against manufacturing defects. If something goes wrong, we make it right.
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30 Days Money-Back Guarantee
Not satisfied? Return it within 30 days for a full refund. Simple, straightforward, no questions asked.
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24 Months Warranty Service
Two full years of warranty coverage on all mechanical components, including the gas lift, mechanism, and casters.
HKM-538835 — Elevate your workspace with uncompromising comfort and timeless style.
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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