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Dongguan Changrong Gift Co., Ltd. Factory Tour

All Products

Custom Business Backpack
(48)

School Backpacks
(13)

Custom Travel Backpack
(15)

Custom Hiking Backpack
(16)

Custom Tactical Backpack
(38)

Custom Lightweight Backpack
(33)

Custom Sports Backpack
(7)

Custom Dry Bag
(21)

Custom Canvas Backpack
(30)

Custom Vegan Leather Backpack
(1)

Custom Duffel Bag
(22)

Custom GYM Bag
(13)

Custom Sling Bag
(13)

Custom Fanny Pack
(2)

Custom Messenger Bag
(2)

Certification

Customer Reviews

"Finding a true engineering partner who can execute complex tech packs without cutting corners is rare. IN-BOOM took our 3-in-1 hybrid travel pack from blueprint to a flawless production-ready prototype in just 7 days. Their precision cut & sew craftsmanship, full compliance with GRS and Cal Prop 65, and commitment to low-MOQ market testing helped

—— Marcus Vance

"For technical mountaineering packs, structural integrity is a matter of safety. We put IN-BOOM's ergonomic load-bearing systems and reinforced bar-tack stitching through brutal field tests, and the build quality exceeded all our benchmarks. Their sample room has an exceptional grasp of technical fabrics and heavy-duty hardware. We couldn't ask for

—— Thomas Lindqvist

"Our 100% waterproof dry bags require flawless high-frequency seam welding, and IN-BOOM delivers absolute perfection every production run. Their strict incoming material checks and zero-defect pressure testing ensure that not a single drop gets through. Working with Jack and his R&D engineering team gave us the exact competitive edge we needed in t

—— David Sterling

"Military-grade packs leave no room for error. IN-BOOM understands heavy Cordura construction, MOLLE precision alignment, and Mil-Spec tolerances down to the millimeter. Their factory audits and 100% pre-shipment inspections give us total peace of mind. Exceptional craftsmanship, on-time delivery, and unmatched professionalism."

—— Col. Nathan Reynolds

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Production Line

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World-Class R&D & Sample Development Center

Precision & Specialty Base (Dongguan)

Megascale & Retail Production Base (Hunan)

Dongguan Inspection & Packaging Workshop

World-Class R&D & Sample Development Center

At IN-BOOM, our R&D department is the beating heart of our custom backpack manufacturing. Staffed by elite master pattern makers and senior structural designers with over 15 years of experience, we transform your innovative concepts into market-ready prototypes with precision and speed. Rapid Prototyping: Turn your tech packs, sketches, or 3D renderings into physical samples within 7–10 days. Engineering & Innovation: We specialize in functional structural optimization, ergonomic harness design, and advan

Precision & Specialty Base (Dongguan)

Location: Dongguan, Guangdong, China Core Focus: Specialized in high-precision, premium-quality, and small-batch custom backpack manufacturing. Key Strengths: Equipped with advanced cut-and-sew machinery and elite master technicians, this facility handles complex structural designs, intricate detailing, and rapid prototyping. It serves as our creative and flexible hub for high-end bespoke collections and rigorous pre-shipment quality control.

Megascale & Retail Production Base (Hunan)

Location: Hunan, China (20,000-square-meter facility) Core Focus: Dedicated to large-scale, high-volume mass production for global retail and retail giants. Key Strengths: A Walmart-audited manufacturing powerhouse optimized for high-efficiency, large-volume assembly lines. It ensures stable, cost-effective, and timely delivery for global retail markets while meeting strict international compliance standards.

Dongguan Inspection & Packaging Workshop

At IN-BOOM, our inspection and packaging workshop in Dongguan serves as the critical final checkpoint before our bespoke products reach international markets. Designed to uphold the highest standards required by clients in Japan and North America, this facility ensures uncompromising quality and reliability. 100% Pre-Shipment Inspection: We enforce a strict 100% full-inspection policy for all export goods. Every custom backpack undergoes rigorous checks covering stitch density, zipper durability, material

Production Line
Advanced Production Lines & Manufacturing Capacity

Our manufacturing infrastructure is split across our two specialized production bases, designed to deliver maximum throughput, precision stitch control, and structural integrity for technical carry solutions.
- Lean, High-Mix Lines (Dongguan Facility): Optimized for high-end, complex, and tech-heavy designs. This facility houses specialized sample-making lines and agile production lines configured for fast changeovers, lower MOQs, and intricate craftsmanship.
- Mass-Scale, High-Volume Lines (Hunan Facility): Configured for maximum efficiency, continuous workflow, and large-scale retail replenishment. This facility utilizes automated, synchronized long-line setups specifically engineered to maintain consistent quality across multi-thousand unit runs for global retailers like Walmart.
Machinery & Technical Capabilities

To guarantee structural durability and uniform aesthetics, our production lines are equipped with industry-standard, precision machinery:
- Automated Pattern Sewers & Programmable Bar-Tackers: For ultra-precise, heavy-duty reinforcement on critical stress points like shoulder straps, haul loops, and load-bearing webbing.
- Heavy-Duty Synchronized Walking Foot Machines: Engineered to flawlessly sew through multi-layered heavy materials, dense foam paddings, and specialized technical fabrics (such as Cordura, ballistic nylon, and thick canvas).
- Computerized High-Speed Lockstitch & Overlock Machines: Ensuring clean, fray-proof internal edge binding and precise, uniform stitch-per-inch (SPI) consistency.
- Specialized Machinery: Equipped with hot-air seam sealing equipment for weatherproofing, automated fabric cutting tables for absolute dimensional accuracy, and dedicated hardware/rivet setting presses.
Workflow & Lean Manufacturing Principles

Our production floors operate under strict 5S Management and Lean Manufacturing methodologies to eliminate waste, prevent cross-contamination of materials, and ensure a smooth bottleneck-free workflow:
1. Material Kitting & Pre-Cutting: Fabrics are precision-cut using digital templates to reduce material waste, then kitted with all required hardware and zippers before hitting the line.
2. Sectional Component Assembly: Sub-assemblies (front panels, organizer pockets, back panels, and shoulder straps) are pre-constructed concurrently on specialized sub-lines.
3. Final Marriage & Structural Closing: The components flow into the main closing line where heavy-duty walking foot machines bind the entire backpack structure together.
4. In-Line Quality Checkpoints (IPQC): Quality inspectors are embedded directly into the production line at critical assembly junctures, catching and correcting any stitching deviations before the bag moves to final closure.
OEM/ODM
Full-Service OEM & ODM Capabilities

We offer comprehensive, end-to-end manufacturing solutions that bridge the gap between creative concepts and market-ready, commercialized products. Whether you require exact-spec replication or full-scale product development, our engineering team ensures elite execution.

🧵 OEM Services (Original Equipment Manufacturing) — Your Design, Our Precision

We transform your complete design files and tech packs into high-performance physical products with strict adherence to your brand’s blueprint.
- Tech Pack & Blueprint Translation: Our engineers seamlessly analyze your technical drawings, bill of materials (BOM), stitching guidelines, and structural callouts to ensure flawless execution.
- Sample Duplication & Reverse Engineering: Provide us with an existing physical reference sample, and our sample room can perfectly replicate its construction, reinforcing weak points and optimizing material efficiency for mass assembly.
- Bespoke Branding & Customization: We offer a massive range of private-label customization options, including custom-branded hardware, specialized zippers (YKK, SBS, etc.), embossed/printed logos, woven labels, and custom molded zipper pulls.
💡 ODM Services (Original Design Manufacturing) — Your Concept, Our Engineering

If you have an idea, a rough sketch, or want to expand your existing product line, our team provides the creative development and material expertise to build it from scratch.
- Concept-to-Prototype Development: We take rough concept sketches, mood boards, or functional descriptions and turn them into 3D-mapped patterns and physical prototypes.
- Advanced Material & Trim Sourcing: Leveraging our massive supply chain network, we source specialized fabrics tailored to your functional needs—ranging from heavy-duty tactical materials and water-resistant coatings to certified GRS eco-friendly fabrics (RPET) and premium vegan leathers.
- Ergonomic & Structural Optimization: We don't just design for looks; we design for utility. Our team optimizes weight distribution, engineer breathable foam mesh backing systems, and configure smart internal organization (laptop sleeves, tech pockets, shoe compartments).
🛠️ Our Seamless 4-Stage Development Workflow

To guarantee accuracy and speed up your time-to-market, every custom project follows a streamlined pipeline:
1. Consultation & Tech Review: Detailed alignment on dimensions, fabric weights (e.g., 900D Polyester, Canvas), target pricing, and compliance requirements (Walmart, BSCI, Prop 65).
2. Rapid Prototyping & Sampling: Our dedicated sample room fabricates a physical counter-sample for your hands-on evaluation, fit-testing, and aesthetic approval.
3. Material Procurement & Lab Testing: Upon sample approval, bulk materials are ordered and subjected to strict incoming quality control (IQC) tests for color matching, tensile strength, and water resistance.
4. Pre-Production Run (PPR): Before full-scale mass production, we run a mini pre-production batch on the line to calibrate our automated machinery, finalize stitch paths, and establish the golden standard for final quality assurance.
R&D
Research & Development (R&D) & Innovation Capabilities

Our forward-thinking R&D department serves as the backbone of our manufacturing excellence. We continuously invest in advanced pattern engineering, high-performance material sourcing, and structural ergonomics to keep our clients ahead of global market trends.

Dedicated Sample Room & Prototyping Center

We operate an independent, fully-equipped R&D sample room separate from our mass production floor. This ensures that new product development receives the dedicated attention, precision, and agility required for rapid turnaround.
- Elite Master Pattern-Makers: Driven by technical specialists with over a decade of experience in heavy-duty cut-and-sew architecture, our team can transform abstract design concepts into highly precise structural templates.
- Rapid Sampling Turnaround: We understand the speed-to-market demands of modern B2B clients. For standard designs, we can deliver a physical prototype within 5 to 7 business days, accelerating your product approval cycle.
- Pre-Production Refinement: Every prototype undergoes rigorous structural testing in our sample room to evaluate weight distribution, seam stress-resistance, and hardware alignment before mass assembly blueprints are finalized.
Advanced Material Exploration & Sustainable Sourcing

Our R&D team maintains deep, strategic partnerships with top-tier raw material mills to ensure our clients have immediate access to cutting-edge fabrications:
- Eco-Innovation (GRS & RPET): We are at the forefront of green supply chain initiatives, continuously developing bag solutions utilizing Global Recycled Standard (GRS) certified recycled polyester, ocean-bound plastics, and sustainable organic canvases.
- Technical & Weatherproof Fabrics: Our material library includes high-tensile 900D fabrics, TPU/PVC fully waterproof coatings, and advanced water-resistant treatments engineered to survive demanding everyday commutes or outdoor hiking.
- Premium Synthetic Alternatives: We excel in formulating custom carryalls using ultra-durable Vegan & Faux Microfiber Leathers that deliver luxury aesthetics with commercial-grade durability.
Ergonomic Design & Functional Engineering

We design for peak human utility. Our engineering focus covers:
- Load Distribution Systems: Creating S-curve ergonomic shoulder straps, breathable 3D air-mesh back panels, and chest/waist stabilization systems to optimize weight distribution and maximize wearer comfort.
- Smart Tech Integration: Designing specialized shockproof laptop suspension compartments, concealed anti-theft storage layout, and integrated USB/type-C smart charging pass-through ports.
Ironclad Design Confidentiality & IP Protection

We treat your intellectual property with the highest degree of corporate integrity. Our R&D facility operates under a Strict Confidentiality Protocol:
- NDA Enforcement: We routinely execute and strictly enforce Non-Disclosure Agreements (NDAs) before accepting any client drawings, tech packs, or brand assets.
- Isolated Data Management: Your custom designs, digital patterns, and custom-molded hardware blueprints are secured on restricted-access local servers, ensuring that your competitive edge remains 100% exclusive to your brand.

Contact Details

Dongguan Changrong Gift Co., Ltd.

Contact Person: Mr. Wang

Tel: +86 13530730060

Dongguan Changrong Gift Co., Ltd. Factory Tour

Custom Business Backpack

School Backpacks

Custom Travel Backpack

Custom Hiking Backpack

Custom Tactical Backpack

Custom Lightweight Backpack

Custom Sports Backpack

Custom Dry Bag

Custom Canvas Backpack

Custom Vegan Leather Backpack

Custom Duffel Bag

Custom GYM Bag

Custom Sling Bag

Custom Fanny Pack

Custom Messenger Bag

Custom Business Backpack

Sleek Custom Business Backpack Minimalist Office Daypack Waterproof 18L

Multi Compartment Laptop Backpack Weatherproof 25L 600D Oxford

School Backpacks

College School Backpacks Teens Casual Travel Daypack USB Charging Port 20L

Color Block School Backpacks Large Laptop Bookbag College Students 30L