34L custom private label industrial backpack layout

34L Insulated Cooler Backpack (Custom OEM/ODM)

Direct-from-factory 34L heavy-duty thermal cooler backpack designed for outdoor brands, corporate promotions, and private label retailers. Features high-frequency leakproof PEVA lining and ergonomic weight-distribution straps.

16-Hour Cold Retention (Tested with 1:1 ice-to-content ratio)
High-Capacity 34L Storage (Holds up to 36 cans + ice pack)
100% Leak-Proof Welded PEVA Liner (Seamless hot-welded construction)
Flexible Low MOQ (Starts at 500 pcs with full branding)

Technical Specifications & Manufacturing Parameters

Verified commercial-grade manufacturing metrics for procurement officers and bulk buyers.

Product Model	OIR-001 (Customizable Series)	Storage Capacity	34 Liters (Approx. 36-40 standard 330ml cans)
Exterior Material	Heavy-Duty Taslan / 600D Polyester (rPET Eco-fabric available)	Insulation Layer	5mm High-Density EPE Pearl Cotton + Non-Woven Buffer Layer
Interior Lining	Food-Grade Heat-Welded PEVA (BPA Free, Leak-proof)	Seam Technology	High-Frequency Ultrasonic Welding (Stitching Hole Free)
Thermal Retention	Cold: 12–16 Hours \| Warm: 6–8 Hours	Max Load Capacity	Up to 22 kg (48.5 lbs) Tensile Tested
Customization Options	Logo, Colorways, Fabric, Dimensions, Zipper Pulls, Internal Dividers	Compliance & Testing	FDA / LFGB Food Contact Grade, REACH, RoHS Compliant
Minimum Order (MOQ)	500 Pcs / Colorway	Packaging Detail	1 Pc/Polybag, 10 Pcs/Master Export Carton (60x42x48 cm)

Custom OEM/ODM Engineering Capabilities

Tailor every component of the 34L cooler backpack to reflect your corporate identity and performance requirements.

Custom Branding & Logo

High-density embroidery, silk-screen printing, debossed rubber patches, metal badge plates, and custom zipper pullers.

Color & Fabric Options

Custom Pantone dye matching, water-repellent TPU coating, 900D Oxford, Canvas, or GRS-certified recycled PET polyester.

Modular Internal Layout

Removable Velcro dividers, dry/wet separation zones, padded laptop sleeves, and insulated side bottle pockets.

Private Label Packaging

Custom retail hangtags, barcode stickers, eco-friendly drawstring dustbags, and branded color-printed master boxes.

Technical Deep Dive & Practical Applications

Ergonomic custom thermal setup layout view

Refined Exterior Pattern Design
Our physical facility implements unique custom quilting profiles that significantly reinforce structural stability while preventing outer layer sag. The dense stitch spacing creates a premium aesthetic that allows private label portfolios to stand out in a crowded market.

Volumetric Sizing Breakdown
The spacious 34L core layout optimizes total internal room, handling complex storage needs for multi-day expeditions. The precise internal dimensions are tailored to safely secure commercial chilling elements, keeping food products fresh and beverages cold during summer weather conditions.

Multi-Layer Thermal Composition
Our technical manufacturing process binds four high-performance performance layers. This specific arrangement limits hot air transfer, significantly outperforming generic promotional alternatives and establishing verified structural longevity for outdoor equipment providers.

Seamless B2B Procurement Workflow

From concept to global delivery, our structured OEM process guarantees speed and precision.

Inquiry & Spec

Send target specs, artwork, and target budget.

Fast Prototyping

Sample delivered in 4–7 business days.

Contract & Deposit

Lock unit pricing, terms, and production timeline.

Mass Production

Automated cutting, stitching, and heat welding.

100% QC Inspection

Hydrostatic leak testing & load stress check.

Global Logistics

Air/Sea shipping with DDP/FOB tracking.

Strict Quality Assurance & Testing Protocol

Every batch of 34L cooler backpacks undergoes rigorous physical and chemical evaluations before dispatch.

Hydrostatic Leak-Proof Test

100% of inner PEVA liners are filled with liquid water and held suspended for 24 hours to ensure zero micro-seepage through high-frequency welded joints.

Temperature Chamber Test

Sample units undergo controlled thermal testing in environmental chambers (40°C ambient) to guarantee cold retention for over 16 hours with standard ice blocks.

Handle & Strap Tension Test

Shoulder straps and top handles are subjected to 5,000 continuous jerk tests with a 25 kg load to prevent seam tearing under heavy outdoor usage.

Food Safety Compliance

All interior materials in direct contact with food or beverages are certified BPA-free, lead-free, and phthalate-free under FDA and LFGB standard testing.

Complete OEM/ODM Portfolio Integration

Leverage our comprehensive equipment array and deep technical luggage assembly insight to scale your company inventory pipeline smoothly.

Automated Assembly Workshop Operation

Observe our active production setup, showing detailed fabric slicing, advanced foam layer alignment, and final double-needle seam strengthening processing.

Material Research & Design Showroom

Review our active research configuration where new water-resistant fabrics undergo strict stress testing and functional compartment configurations are finalized.

Verified Factory Production Focus

Rigorous processing steps delivering high retail margins

High-Frequency Heat Welding

Our internal PEVA elements are processed using modern heat-welding techniques, entirely replacing traditional thread sewing holes to guarantee 100% waterproof containment.

Three-Tier Batch Inspection

Every operational manufacturing lot undergoes full physical raw-material assessment, real-time in-line quality verification, and 24-hour liquid leak testing prior to package containment.

Initialize Your Production Sourcing Schedule

Speak directly with our technical design engineering division to finalize pricing charts, select base fabric variants, and lock in seasonal warehouse allocation slots.

Request Custom Quote Send Project Requirements

Proven Client Success Cases

How our custom manufacturing helped global clients win market share and lower defective rates.

European Outdoor Retailer

Private Label Hiking Cooler

Customized 12,000 units with GRS-certified rPET recycled fabric and custom logo rubber badges. Passed strict EU REACH environmental compliance.

12,000 Pcs

Order Volume

< 0.01%

Defect Rate

North American Beverage Brand

Summer Promotional Gear

Engineered full-bleed vibrant sub-limated exterior print matching exact brand Pantone colors. Delivered within a tight 28-day window for nationwide distribution.

28 Days

Turnaround

100%

On-Time Delivery

Cold-Chain Delivery Fleet

Heavy-Duty Courier Backpack

Reinforced double-stitched straps and modified internal dividers for commercial meal delivery. Increased liner durability by 3x compared to prior vendors.

Lifespan Boost

85%

Reorder Rate

Industrial Compliance & Quality Assurance

Our factory operates under international standards to ensure ethical production and premium product integrity.

BSCI Audited Factory - Social Compliance for Global Exports

Social Compliance (BSCI)

Audited ethical labor practices ensuring fair working conditions for high-end retail supply chains.

ISO 9001 Quality Management System Certified Bag Factory

Quality Standard (ISO 9001)

Strict 100% QC inspection protocols from raw material sourcing to final batch shipping.

Sustainable bag manufacturing - GRS and Eco-friendly certified materials

Sustainability & GRS

Expertise in recycled polyester (rPET) and sustainable fabrics meeting global green initiatives.

ISO 14001 Environmental Management for Bag Manufacturing

Eco-Management (ISO 14001)

Standardized environmental systems focused on reducing carbon footprint and industrial waste.

Frequently Asked Questions

What is the minimum order quantity for custom manufacturing?

Our standard contract production configuration starts at a low 500 pieces per dedicated colorway or custom layout design. This setup allows private label brands and distributors to efficiently scale and launch specific inventory without capital overextension.

How long does your bulk bag manufacturing operation take?

The custom engineering timeline requires 4 to 7 business days for initial physical sample approval. Upon final prototype configuration sign-off, our bulk production line deployment completes production within 30 days.

Can you customize the internal compartments and external branding options?

Yes, we handle deep product modifications. Our complete OEM/ODM production includes tailored layout division adjustments, specialized custom quilting designs, and corporate logo implementation via technical screen printing, dense embroidery, or molded structural rubber patches.

What specific materials are utilized for high thermal performance?

We implement a heavy-duty four-layer composite structure including premium water-resistant outer Taslan shells, protective non-woven buffers, a 5mm high-density thermal pearl foam core, and food-grade seamless PEVA internal barriers.

How does your technical assembly process ensure absolute leak-proof quality?

All protective inner PEVA linings are processed using modern high-frequency hot-welding tooling. This completely replaces standard sewing needles, avoiding puncture channels and ensuring absolute waterproof fluid containment.

What corporate transit options are provided for volume cargo shipments?

We organize multi-channel international shipping infrastructure including direct air express routes (7-10 days), consolidated cargo flights (15-20 days), and stable sea container shipping paths (30-45 days) with clear customs tracing.